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Synchronization and firing mode transition of two neurons in a bilateral auditory system driven by a high–low frequency signal Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Charles Omotomide Apata, Yi-Rui Tang, Yi-Fan Zhou, Long Jiang, Qi-Ming Pei
The FitzHugh–Nagumo neuron circuit integrates a piezoelectric ceramic to form a piezoelectric sensing neuron, which can capture external sound signals and simulate the auditory neuron system. Two piezoelectric sensing neurons are coupled by a parallel circuit consisting of a Josephson junction and a linear resistor, and a binaural auditory system is established. Considering the non-singleness of external
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Individual dynamics and local heterogeneity provide a microscopic view of the epidemic spreading Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Youyuan Zhu, Ruizhe Shen, Hao Dong, Wei Wang
The COVID-19 pandemic has caused severe global disasters, highlighting the importance of understanding the details and trends of epidemic transmission in order to introduce efficient intervention measures. While the widely used deterministic compartmental models have qualitatively presented continuous “analytical” insight and captured some transmission features, their treatment usually lacks spatiotemporal
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Enhanced anomalous Hall effect in kagome magnet YbMn6Sn6 with intermediate-valence ytterbium Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Longfei Li, Shengwei Chi, Wenlong Ma, Kaizhen Guo, Gang Xu, Shuang Jia
We report on the magnetization and anomalous Hall effect (AHE) in the high-quality single crystals of the kagome magnet YbMn6Sn6, where the spins of the Mn atoms in the kagome lattice order ferromagnetically and the intermediate-valence Yb atoms are nonmagnetic. The intrinsic mechanism plays a crucial role in the AHE, leading to an enhanced anomalous Hall conductivity (AHC) compared with the other
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Remote sensing image encryption algorithm based on novel hyperchaos and an elliptic curve cryptosystem Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Jing-Xi Tian, Song-Chang Jin, Xiao-Qiang Zhang, Shao-Wu Yang, Dian-Xi Shi
Remote sensing images carry crucial ground information, often involving the spatial distribution and spatiotemporal changes of surface elements. To safeguard this sensitive data, image encryption technology is essential. In this paper, a novel Fibonacci sine exponential map is designed, the hyperchaotic performance of which is particularly suitable for image encryption algorithms. An encryption algorithm
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Novel self-embedding holographic watermarking image encryption protection scheme Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Linian Wang, Nanrun Zhou, Bo Sun, Yinghong Cao, Jun Mou
For digital image transmission security and information copyright, a new holographic image self-embedding watermarking encryption scheme is proposed. Firstly, the plaintext is converted to the RGB three-color channel, the corresponding phase hologram is obtained by holographic technology and the watermark is self-embedded in the frequency domain. Secondly, by applying the Hilbert transform principle
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Building and characterizing a stylus ion-trap system Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Tai-Hao Cui, Ya-Qi Wei, Ji Li, Quan Yuan, Shuang-Qing Dai, Pei-Dong Li, Fei Zhou, Jian-Qi Zhang, Zhu-Jun Zheng, Liang Chen, Mang Feng
Cold trapped ions can be excellent sensors for ultra-precision detection of physical quantities, which strongly depends on the measurement situation at hand. The stylus ion trap, formed by two concentric cylinders over a ground plane, holds the promise of relatively simple structure and larger solid angle for optical access and fluorescence collection in comparison with the conventional ion traps.
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Dynamic modeling of cavitation bubble clusters: Effects of evaporation, condensation, and bubble–bubble interaction Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Long Xu, Xin-Rui Yao, Yang Shen
We present a dynamic model of cavitation bubbles in a cluster, in which the effects of evaporation, condensation, and bubble–bubble interactions are taken into consideration. Under different ultrasound conditions, we examine how the dynamics of cavitation bubbles are affected by several factors, such as the locations of the bubbles, the ambient radius, and the number of bubbles. Herein the variations
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Plasma potential measurements using an emissive probe made of oxide cathode Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Jian-Quan Li, Hai-Jie Ma, Wen-Qi Lu
A novel emissive probe consisting of an oxide cathode coating is developed to achieve a low operating temperature and long service life. The properties of the novel emissive probe are investigated in detail, in comparison with a traditional tungsten emissive probe, including the operating temperature, the electron emission capability and the plasma potential measurement. Studies of the operating temperature
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Diameter-dependent ultra-high thermoelectric performance of ZnO nanowires Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yinan Nie, Guihua Tang, Yifei Li, Min Zhang, Xin Zhao
Zinc oxide (ZnO) shows great potential in electronics, but its large intrinsic thermal conductivity limits its thermoelectric applications. In this work, we explore the significant carrier transport capacity and diameter-dependent thermoelectric characteristics of wurtzite-ZnO 〈0001〉 nanowires based on first-principles and molecular dynamics simulations. Under the synergistic effect of band degeneracy
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Dynamical behaviors in discrete memristor-coupled small-world neuronal networks Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Jieyu Lu, Xiaohua Xie, Yaping Lu, Yalian Wu, Chunlai Li, Minglin Ma
The brain is a complex network system in which a large number of neurons are widely connected to each other and transmit signals to each other. The memory characteristic of memristors makes them suitable for simulating neuronal synapses with plasticity. In this paper, a memristor is used to simulate a synapse, a discrete small-world neuronal network is constructed based on Rulkov neurons and its dynamical
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Strong field ionization of molecules on the surface of nanosystems Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Qiwen Qu, Fenghao Sun, Jiawei Wang, Jian Gao, Hui Li, Jian Wu
Besides the diverse investigations on the interactions between intense laser fields and molecular systems, extensive research has been recently dedicated to exploring the response of nanosystems excited by well-tailored femtosecond laser fields. Due to the fact that nanostructures hold peculiar effects when illuminated by laser pulses, the underlying mechanisms and the corresponding potential applications
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Target layer state estimation in multi-layer complex dynamical networks considering nonlinear node dynamics Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yayong Wu, Xinwei Wang, Guo-Ping Jiang
In many engineering networks, only a part of target state variables are required to be estimated. On the other hand, multi-layer complex network exists widely in practical situations. In this paper, the state estimation of target state variables in multi-layer complex dynamical networks with nonlinear node dynamics is studied. A suitable functional state observer is constructed with the limited measurement
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Near-field radiative heat transfer between nanoporous GaN films Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Xiaozheng Han, Jihong Zhang, Haotuo Liu, Xiaohu Wu, Huiwen Leng
Photon tunneling effects give rise to surface waves, amplifying radiative heat transfer in the near-field regime. Recent research has highlighted that the introduction of nanopores into materials creates additional pathways for heat transfer, leading to a substantial enhancement of near-field radiative heat transfer (NFRHT). Being a direct bandgap semiconductor, GaN has high thermal conductivity and
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Probing the peripheral self-generated magnetic field distribution in laser-plasma magnetic reconnection with Martin–Puplett interferometer polarimeter Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Ya-Peng Zhang, Jia-Wen Yao, Zheng-Dong Liu, Zuo-Lin Ma, Jia-Yong Zhong
Magnetic reconnection of the self-generated magnetic fields in laser-plasma interaction is an important laboratory method for modeling high-energy density astronomical and astrophysical phenomena. We use the Martin–Puplett interferometer (MPI) polarimeter to probe the peripheral magnetic fields generated in the common magnetic reconnection configuration, two separated coplanar plane targets, in laser-target
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Low-energy inelastic electron scattering from carbon monoxide: Excitation and de-excitation of the X1Σ+, a3Π, a′3Σ+, A1Π, d3Δ, e3Σ−, I1Σ− and D1Δ electronic states Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Pengyu Wei, Chaowen Huang, Xinlu Cheng, Hong Zhang
Cross-sections for electronic excitation and de-excitation among the ground state and lowest-lying seven electronic excited states of carbon monoxide (CO) by low-energy electron impact are computed using the R-matrix method. The excitation cross-sections from the ground state to the electronic states a3Π, a′3Σ+ and A1Π agree with previous experimental and theoretical results. In addition, the cross-sections
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Thermal conductivity of GeTe crystals based on machine learning potentials Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Jian Zhang, Hao-Chun Zhang, Weifeng Li, Gang Zhang
GeTe has attracted extensive research interest for thermoelectric applications. In this paper, we first train a neuro-evolution potential (NEP) based on a dataset constructed by ab initio molecular dynamics, with the Gaussian approximation potential (GAP) as a reference. The phonon density of states is then calculated by two machine learning potentials and compared with density functional theory results
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Cryptanalysis of efficient semi-quantum secret sharing protocol using single particles Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Gan Gao
In paper [Chin. Phys. B 32 070308 (2023)], Xing et al. proposed a semi-quantum secret sharing protocol by using single particles. We study the security of the proposed protocol and find that it is not secure, that is, the three dishonest agents, Bob, Charlie and Emily can collude to obtain Alice’s secret without the help of David.
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Transport properties of Hall-type quantum states in disordered bismuthene Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Jiaojiao Zhou, Jiangying Yu, Shuguang Cheng, Hua Jiang
Bismuthene, an inherently hexagonal structure characterized by a huge bulk gap, offers a versatile platform for investigating the electronic transport of various topological quantum states. Using nonequilibrium Green’s function method and Landauer–Büttiker formula, we thoroughly investigate the transport properties of various Hall-type quantum states, including quantum spin Hall (QSH) edge states,
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Quantum control based on three forms of Lyapunov functions Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Guo-Hui Yu, Hong-Li Yang
This paper introduces the quantum control of Lyapunov functions based on the state distance, the mean of imaginary quantities and state errors. In this paper, the specific control laws under the three forms are given. Stability is analyzed by the LaSalle invariance principle and the numerical simulation is carried out in a 2D test system. The calculation process for the Lyapunov function is based on
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Computing large deviation prefactors of stochastic dynamical systems based on machine learning Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yang Li, Shenglan Yuan, Linghongzhi Lu, Xianbin Liu
We present a large deviation theory that characterizes the exponential estimate for rare events in stochastic dynamical systems in the limit of weak noise. We aim to consider a next-to-leading-order approximation for more accurate calculation of the mean exit time by computing large deviation prefactors with the aid of machine learning. More specifically, we design a neural network framework to compute
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Phase-field simulations of the effect of temperature and interface for zirconium δ-hydrides Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Zi-Hang Chen, Jie Sheng, Yu Liu, Xiao-Ming Shi, Houbing Huang, Ke Xu, Yue-Chao Wang, Shuai Wu, Bo Sun, Hai-Feng Liu, Hai-Feng Song
Hydride precipitation in zirconium cladding materials can damage their integrity and durability. Service temperature and material defects have a significant effect on the dynamic growth of hydrides. In this study, we have developed a phase-field model based on the assumption of elastic behaviour within a specific temperature range (613 K–653 K). This model allows us to study the influence of temperature
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Non-Gaussian quantum states generated via quantum catalysis and their statistical properties Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Xiao-Yan Zhang, Chun-Yan Yang, Ji-Suo Wang, Xiang-Guo Meng
A new kind of non-Gaussian quantum catalyzed state is proposed via multiphoton measurements and two-mode squeezing as an input of thermal state. The characteristics of the generated multiphoton catalysis output state depends on the thermal parameter, catalyzed photon number and squeezing parameter. We then analyze the nonclassical properties by examining the photon number distribution, photocount distribution
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Influence of extraction voltage on electron and ion behavior characteristics Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Ao Xu, Pingping Gan, Yuanjie Shi, Lei Chen
The characteristics of the extracted ion current have a significant impact on the design and testing of ion source performance. In this paper, a 2D in space and 3D in velocity space particle in cell (2D3V PIC) method is utilized to simulate plasma motion and ion extraction characteristics under various initial plasma velocity distributions and extraction voltages in a Cartesian coordinate system. The
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Anomalous valley Hall effect in two-dimensional valleytronic materials Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Hongxin Chen, Xiaobo Yuan, Junfeng Ren
The anomalous valley Hall effect (AVHE) can be used to explore and utilize valley degrees of freedom in materials, which has potential applications in fields such as information storage, quantum computing and optoelectronics. AVHE exists in two-dimensional (2D) materials possessing valley polarization (VP), and such 2D materials usually belong to the hexagonal honeycomb lattice. Therefore, it is necessary
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Localized wave solutions and interactions of the (2+1)-dimensional Hirota–Satsuma–Ito equation Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Qiankun Gong, Hui Wang, Yunhu Wang
This paper studies the (2+1)-dimensional Hirota–Satsuma–Ito equation. Based on an associated Hirota bilinear form, lump-type solution, two types of interaction solutions, and breather wave solution of the (2+1)-dimensional Hirota–Satsuma–Ito equation are obtained, which are all related to the seed solution of the equation. It is interesting that the rogue wave is aroused by the interaction between
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Enhanced stability of FA-based perovskite: Rare-earth metal compound EuBr2 doping Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Minna Hou, Xu Guo, Meidouxue Han, Juntao Zhao, Zhiyuan Wang, Yi Ding, Guofu Hou, Zongsheng Zhang, Xiaoping Han
It is highly desirable to enhance the long-term stability of perovskite solar cells (PSCs) so that this class of photovoltaic cells can be effectively used for the commercialization purposes. In this contribution, attempts have been made to use the two-step sequential method to dope EuBr2 into FAMAPbI3 perovskite to promote the stability. It is shown that the device durability at 85 °C in air with
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Polarization control of above-threshold ionization spectrum in elliptically polarized two-color laser fields Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Fa-Cheng Jin, Hui-Hui Yang, Xiao-Hong Song, Fei Li, Ling-Ling Du, Hong-Jie Xue, Li-Min Wei, Yue Bai, Hao-Xiang Liu, Bing-Bing Wang, Wei-Feng Yang
We study the above-threshold ionization (ATI) process of atoms exposed to fundamental and high-frequency lasers with arbitrary ellipticity by applying the frequency-domain theory. It is found that the angular-resolved ATI spectrum is sensitive to ellipticities of two lasers and emitted angles of the photoelectron. Particularly for the photon energy of the high-frequency laser more than atomic ionization
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Symmetry transformation of nonlinear optical current of tilted Weyl nodes and application to ferromagnetic MnBi2Te4 Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Zhuo-Cheng Lu, Ji Feng
A Weyl node is characterized by its chirality and tilt. We develop a theory of how nth-order nonlinear optical conductivity behaves under transformations of anisotropic tensor and tilt, which clarifies how chirality-dependent and -independent parts of optical conductivity transform under the reversal of tilt and chirality. Built on this theory, we propose ferromagnetic MnBi2Te4 as a magnetoelectrically
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Phonon transport properties of Janus Pb2 XAs (X = P, Sb, and Bi) monolayers: A DFT study Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Jiaxin Geng, Pei Zhang, Zhunyun Tang, Tao Ouyang
Grasping the underlying mechanisms behind the low lattice thermal conductivity of materials is essential for the efficient design and development of high-performance thermoelectric materials and thermal barrier coating materials. In this paper, we present a first-principles calculations of the phonon transport properties of Janus Pb2PAs and Pb2SbAs monolayers. Both materials possess low lattice thermal
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Emergent topological ordered phase for the Ising-XY model revealed by cluster-updating Monte Carlo method Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Heyang Ma, Wanzhou Zhang, Yanting Tian, Chengxiang Ding, Youjin Deng
The two-component cold atom systems with anisotropic hopping amplitudes can be phenomenologically described by a two-dimensional Ising-XY coupled model with spatial anisotropy. At low temperatures, theoretical predictions [Phys. Rev. A 72 053604 (2005)] and [arXiv: 0706.1609] indicate the existence of a topological ordered phase characterized by Ising and XY disorder but with 2XY ordering. However
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Controlled thermally-driven mass transport in carbon nanotubes using carbon hoops Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yaolong Li, Songyuan Li, Meifen Wang, Renliang Zhang
Controlling mass transportation using intrinsic mechanisms is a challenging topic in nanotechnology. Herein, we employ molecular dynamics simulations to investigate the mass transport inside carbon nanotubes (CNT) with temperature gradients, specifically the effects of adding a static carbon hoop to the outside of a CNT on the transport of a nanomotor inside the CNT. We reveal that the underlying mechanism
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Chimera states of phase oscillator populations with nonlocal higher-order couplings Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yonggang Wu, Huajian Yu, Zhigang Zheng, Can Xu
The chimera states underlying many realistic dynamical processes have attracted ample attention in the area of dynamical systems. Here, we generalize the Kuramoto model with nonlocal coupling incorporating higher-order interactions encoded with simplicial complexes. Previous works have shown that higher-order interactions promote coherent states. However, we uncover the fact that the introduced higher-order
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View of thermodynamic phase transition of the charged Gauss–Bonnet AdS black hole via the shadow Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Ke-Jian He, Sen Guo, Zhi Luo, Guo-Ping Li
We examine thermodynamic phase transition (PT) of the charged Gauss–Bonnet AdS black hole (BH) by utilizing the shadow radius. In this system, we rescale the corresponding Gauss–Bonnet coefficient α by a factor of 1/(D–4), and ensure that α is positive to avoid any singularity problems. The equation derived for the shadow radius indicates that it increases as the event horizon radius increases, making
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Research of caged dynamics of clusters center atoms in Pd82Si18 amorphous alloy Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yong-He Deng, Bei Chen, Qing-Hua Qi, Bing-Bing Li, Ming Gao, Da-Dong Wen, Xiao-Yun Wang, Ping Peng
To date, there is still a lack of a comprehensive explanation for caged dynamics which is regarded as one of the intricate dynamic behaviors in amorphous alloys. This study focuses on Pd82Si18 as the research object to further elucidate the underlying mechanism of caged dynamics from multiple perspectives, including the cage’s lifetime, atomic local environment, and atomic potential energy. The results
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Anisotropic spin transport and photoresponse characteristics detected by tip movement in magnetic single-molecule junction Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Deng-Hui Chen, Zhi Yang, Xin-Yu Fu, Shen-Ao Qin, Yan Yan, Chuan-Kui Wang, Zong-Liang Li, Shuai Qiu
Orientation-dependent transport properties induced by anisotropic molecules are enticing in single-molecule junctions. Here, using the first-principles method, we theoretically investigate spin transport properties and photoresponse characteristics in trimesic acid magnetic single-molecule junctions with different molecular adsorption orientations and electrode contact sites. The transport calculations
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Simulation of deuterium pellet ablation and deposition in the EAST tokamak with HPI2 code Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Da-Zheng Li, Jie Zhang, Ji-Lei Hou, Mao Li, Ji-Zhong Sun
Pellet injection is a primary method for fueling the plasma in magnetic confinement devices. For that goal the knowledges of pellet ablation and deposition profiles are critical. In the present study, the pellet fueling code HPI2 was used to predict the ablation and deposition profiles of deuterium pellets injected into a typical H-mode discharge on the EAST tokamak. Pellet ablation and deposition
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Spin direction dependent quantum anomalous Hall effect in two-dimensional ferromagnetic materials Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yu-Xian Yang, Chang-Wen Zhang
We propose a scheme for realizing the spin direction-dependent quantum anomalous Hall effect (QAHE) driven by spin–orbit couplings (SOC) in two-dimensional (2D) materials. Based on the sp3 tight-binding (TB) model, we find that these systems can exhibit a QAHE with out-of-plane and in-plane magnetization for the weak and strong SOC, respectively, in which the mechanism of quantum transition is mainly
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Pre-existing orthorhombic embryos-induced hexagonal–orthorhombic martensitic transformation in MnNiSi1–x (CoNiGe) x alloy Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Ting-Ting Zhang, Yuan-Yuan Gong, Zi-Qian Lu, Feng Xu
The thermal–elastic martensitic transformation from high-temperature Ni2In-type hexagonal structure to low-temperature TiNiSi-type orthorhombic structure has been widely studied in MnMX (M = Ni or Co, and X = Ge or Si) alloys. However, the answer to how the orthorhombic martensite nucleates and grows within the hexagonal parent is still unclear. In this work, the hexagonal–orthorhombic martensitic
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Effect of external magnetic field on the instability of THz plasma waves in nanoscale graphene field-effect transistors Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Liping Zhang, Zongyao Sun, Jiani Li, Junyan Su
The instability of plasma waves in the channel of field-effect transistors will cause the electromagnetic waves with THz frequency. Based on a self-consistent quantum hydrodynamic model, the instability of THz plasmas waves in the channel of graphene field-effect transistors has been investigated with external magnetic field and quantum effects. We analyzed the influence of weak magnetic fields, quantum
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Influence of substrate effect on near-field radiative modulator based on biaxial hyperbolic materials Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Ruiyi Liu, Haotuo Liu, Yang Hu, Zheng Cui, Xiaohu Wu
Relative rotation between the emitter and receiver could effectively modulate the near-field radiative heat transfer (NFRHT) in anisotropic media. Due to the strong in-plane anisotropy, natural hyperbolic materials can be used to construct near-field radiative modulators with excellent modulation effects. However, in practical applications, natural hyperbolic materials need to be deposited on the substrate
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Wide frequency phonons manipulation in Si nanowire by introducing nanopillars and nanoparticles Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yatao Li, Yingguang Liu, Xin Li, Hengxuan Li, Zhixiang Wang, Jiuyi Zhang
The combination of different nanostructures can hinder phonons transmission in a wide frequency range and further reduce the thermal conductivity (TC). This will benefit the improvement and application of thermoelectric conversion, insulating materials and thermal barrier coatings, etc. In this work, the effects of nanopillars and Ge nanoparticles (GNPs) on the thermal transport of Si nanowire (SN)
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Error field penetration in J-TEXT tokamak based on two-fluid drift-MHD model Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Wen Wang, Tao Xu, Yi Zhang, the J-TEXT team1
An externally generated resonant magnetic perturbation can induce complex non-ideal MHD responses in their resonant surfaces. We have studied the plasma responses using Fitzpatrick’s improved two-fluid model and program LAYER. We calculated the error field penetration threshold for J-TEXT. In addition, we find that the island width increases slightly as the error field amplitude increases when the
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Accelerated generation of holograms with ultra-low memory symmetrically high-compressed look-up table Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Yan Yang, Jianying Zhu, Minyuan Sun, Yong Bi
Computer-generated holography technology has been widely applied, and as research in this field deepens, the demand for memory and computational power in small AR and VR devices continues to increase. This paper presents a hologram generation method, i.e., a symmetrically high-compressed look-up table method, which can reduce memory usage by 50%. In offline computing, half of the basic horizontal and
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General three-dimensional thermal illusion metamaterials Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Tianfeng Liu, Zhaochen Wang, Zhan Zhu, Run Hu
Thermal illusion aims to create fake thermal signals or hide the thermal target from the background thermal field to mislead infrared observers, and illusion thermotics was proposed to regulate heat flux with artificially structured metamaterials for thermal illusion. Most theoretical and experimental works on illusion thermotics focus on two-dimensional materials, while heat transfer in real three-dimensional
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Analysis of learnability of a novel hybrid quantum–classical convolutional neural network in image classification Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Tao Cheng, Run-Sheng Zhao, Shuang Wang, Rui Wang, Hong-Yang Ma
We design a new hybrid quantum–classical convolutional neural network (HQCCNN) model based on parameter quantum circuits. In this model, we use parameterized quantum circuits (PQCs) to redesign the convolutional layer in classical convolutional neural networks, forming a new quantum convolutional layer to achieve unitary transformation of quantum states, enabling the model to more accurately extract
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A proposal for detecting weak electromagnetic waves around 2.6 μm wavelength with Sr optical clock Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Ruo-Shui Han, Wei Wang, Tao Wang
Infrared signal detection is widely used in many fields. Due to the detection principle, however, the accuracy and range of detection are limited. Thanks to the ultra stability of the 87Sr optical lattice clock, external infrared electromagnetic wave disturbances can be responded to. Utilizing the ac Stark shift of the clock transition, we propose a new method to detect infrared signals. According
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Coherence of nonlinear Bloch dynamics of Bose–Einstein condensates in deep optical lattices Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Ai-Xia Zhang, Wei Zhang, Jie Wang, Xiao-Wen Hu, Lai-Lai Mi, Ju-Kui Xue
Atomic interaction leads to dephasing and damping of Bloch oscillations (BOs) in optical lattices, which limits observation and applications of BOs. How to obtain persistent BOs is particularly important. Here, the nonlinear Bloch dynamics of the Bose–Einstein condensate with two-body and three-body interactions in deep optical lattices is studied. The damping rate induced by interactions is obtained
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Absolute partial and total ionization cross sections of carbon monoxide with electron collision from 350 eV to 8000 eV Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Taj Wali Khan, Weizhe Huang, Enliang Wang, Xu Shan, Xiangjun Chen
The absolute partial and total cross sections for electron impact ionization of carbon monoxide are reported for electron energies from 350 eV to 8000 eV. The product ions (CO+, C+, O+, CO2+, C2+, and O2+) are measured by employing an ion imaging mass spectrometer and two ion-pair dissociation channels (C+ + O+ and C2+ + O+) are identified. The absolute cross sections for producing individual ions
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Higher-dimensional Chen–Lee–Liu equation and asymmetric peakon soliton Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Qiao-Hong Han, Man Jia
Integrable systems play a crucial role in physics and mathematics. In particular, the traditional (1+1)-dimensional and (2+1)-dimensional integrable systems have received significant attention due to the rarity of integrable systems in higher dimensions. Recent studies have shown that abundant higher-dimensional integrable systems can be constructed from (1+1)-dimensional integrable systems by using
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Thermal-contact capacity of one-dimensional attractive Gaudin–Yang model Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Xiao-Min Zhang, Song Cheng, Yang-Yang Chen
Tan’s contact C is an important quantity measuring the two-body correlations at short distances in a dilute system. Here we make use of the technique of exactly solved models to study the thermal-contact capacity KT , i.e., the derivative of C with respect to temperature in the attractive Gaudin–Yang model. It is found that KT is useful in identifying the low temperature phase diagram, and using the
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Observer-based dynamic event-triggered control for distributed parameter systems over mobile sensor-plus-actuator networks Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Wenying Mu, Bo Zhuang, Fang Qiu
We develop a policy of observer-based dynamic event-triggered state feedback control for distributed parameter systems over a mobile sensor-plus-actuator network. It is assumed that the mobile sensing devices that provide spatially averaged state measurements can be used to improve state estimation in the network. For the purpose of decreasing the update frequency of controller and unnecessary sampled
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Microscopic growth mechanism and edge states of monolayer 1T′-MoTe2 Chin. Phys. B (IF 1.7) Pub Date : 2024-04-01 Haipeng Zhao, Yin Liu, Shengguo Yang, Chenfang Lin, Mingxing Chen, Kai Braun, Xinyi Luo, Siyu Li, Anlian Pan, Xiao Wang
Transition metal ditellurides (TMTDs) have versatile physical properties, including non-trivial topology, Weyl semimetal states and unique spin texture. Controlled growth of high-quality and large-scale monolayer TMTDs with preferred crystal phases is crucial for their applications. Here, we demonstrate the epitaxial growth of 1T′-MoTe2 on Au (111) and graphitized silicon carbide (Gr/SiC) by molecular
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Local thermal conductivity of inhomogeneous nano-fluidic films: A density functional theory perspective Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Zongli Sun, Yanshuang Kang, Yanmei Kang
Combining the mean field Pozhar–Gubbins (PG) theory and the weighted density approximation, a novel method for local thermal conductivity of inhomogeneous fluids is proposed. The correlation effect that is beyond the mean field treatment is taken into account by the simulation-based empirical correlations. The application of this method to confined argon in slit pore shows that its prediction agrees
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Physical mechanism of secondary-electron emission in Si wafers Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Yanan Zhao, Xiangzhao Meng, Shuting Peng, Guanghui Miao, Yuqiang Gao, Bin Peng, Wanzhao Cui, Zhongqiang Hu
CMOS-compatible RF/microwave devices, such as filters and amplifiers, have been widely used in wireless communication systems. However, secondary-electron emission phenomena often occur in RF/microwave devices based on silicon (Si) wafers, especially in the high-frequency range. In this paper, we have studied the major factors that influence the secondary-electron yield (SEY) in commercial Si wafers
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Structure and superconducting properties of Ru1–x Mo x (x = 0.1–0.9) alloys Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Yang Fu, Chunsheng Gong, Zhijun Tu, Shangjie Tian, Shouguo Wang, Hechang Lei
We report the detailed crystal structures and physical properties of Ru1−x Mo x alloys in the solid solution range of x = 0.1–0.9. Structure characterizations indicate that the crystal structure changes from the hcp-Mg-type, to β-CrFe-type, and then bcc-W-type. The measurements of physical properties show that the Ru1−x Mo x samples with x ≥ 0.2 are superconductors and the superconducting transition
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Actively tuning anisotropic light–matter interaction in biaxial hyperbolic material α-MoO3 using phase change material VO2 and graphene Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Kun Zhou, Yang Hu, Biyuan Wu, Xiaoxing Zhong, Xiaohu Wu
Anisotropic hyperbolic phonon polaritons (PhPs) in natural biaxial hyperbolic material α-MoO3 has opened up new avenues for mid-infrared nanophotonics, while active tunability of α-MoO3 PhPs is still an urgent problem necessarily to be solved. In this study, we present a theoretical demonstration of actively tuning α-MoO3 PhPs using phase change material VO2 and graphene. It is observed that α-MoO3
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Stability and melting behavior of boron phosphide under high pressure Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Wenjia Liang, Xiaojun Xiang, Qian Li, Hao Liang, Fang Peng
Boron phosphide (BP) has gained significant research attention due to its unique photoelectric and mechanical properties. In this work, we investigated the stability of BP under high pressure using x-ray diffraction and scanning electron microscope. The phase diagram of BP was explored in both B-rich and P-rich environments, revealing crucial insight into its behavior at 5.0 GPa. Additionally, we measured
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Plasmon-induced nonlinear response on gold nanoclusters Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Yuhui Song, Yifei Cao, Sichen Huang, Kaichao Li, Ruhai Du, Lei Yan, Zhengkun Fu, Zhenglong Zhang
The plasmon-induced nonlinear response has attracted great attention in micro-nano optics and optoelectronics applications, yet the underlying microscopic mechanism remains elusive. In this study, the nonlinear response of gold nanoclusters when exposed to a femtosecond laser pulse was investigated using time-dependent density functional theory. It was observed that the third-order tunneling current
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Topological edge and corner states of valley photonic crystals with zipper-like boundary conditions Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Yun-Feng Shen, Xiao-Fang Xu, Ming Sun, Wen-Ji Zhou, Ya-Jing Chang
We present a stable valley photonic crystal (VPC) unit cell with C 3v symmetric quasi-ring-shaped dielectric columns and realize its topological phase transition by breaking mirror symmetry. Based on this unit cell structure, topological edge states (TESs) and topological corner states (TCSs) are realized. We obtain a new type of wave transmission mode based on photonic crystal zipper-like boundaries
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In situ observation of the phase transformation kinetics of bismuth during shock release Chin. Phys. B (IF 1.7) Pub Date : 2024-03-01 Jiangtao Li, Qiannan Wang, Liang Xu, Lei Liu, Hang Zhang, Sota Takagi, Kouhei Ichiyanagi, Ryo Fukaya, Shunsuke Nozawa, Jianbo Hu
A time-resolved x-ray diffraction technique is employed to monitor the structural transformation of laser-shocked bismuth. Results reveal a retarded transformation from the shock-induced Bi-V phase to a metastable Bi-IV phase during the shock release, instead of the thermodynamically stable Bi-III phase. The emergence of the metastable Bi-IV phase is understood by the competitive interplay between