Understanding the microstructure of materials and their impact on performance is crucial for new electronic devices design. The strong interaction between multiple degrees of freedom (spin, orbit, charge, and lattice) within perovskite type oxides can generate rich electron phase diagrams. The microscopic modulation of manganese ions electron states in rare earth manganate perovskites is the root of many novel macroscopic quantum behaviors, such as giant magnetoresistance phenomenon. For ABO3 type perovskites, the differences of radii and valence states of A‐site ions are used to regulate the coexistence of B site manganese multivalent states (Mn3+, Mn4+, Mn5+), and its ordered structure in the metastable state will create a new combination of electronic states. The ordered arrangement of the multi‐dimensional space of electronic states can induce unique transport properties. Therefore, the preparation of manganate perovskites will provide strong chemical support to construct new generation quantum devices. This review summarizes the challenges and difficulties on constructing trivalent coexisting metastable phase in manganate perovskites through disproportionation reactions, and discusses the status and potential of designing ideal rectified p‐n junctions taking advantage of this unique structure. Finally, the foregrounds of new quantum states driven by this chemical reaction are prospected.

中文翻译：

---

多价锰酸盐钙钛矿的合成和新型输运特性综述：进展、机遇和挑战

了解材料的微观结构及其对性能的影响对于新电子设备的设计至关重要。钙钛矿型氧化物内的多个自由度（自旋、轨道、电荷和晶格）之间的强相互作用可以产生丰富的电子相图。稀土锰酸盐钙钛矿中锰离子电子态的微观调制是许多新颖的宏观量子行为的根源，例如巨磁阻现象。对于 ABO 血型3型钙钛矿，利用A位离子半径和价态的差异来调节B位锰多价态（Mn3+, 锰4+, 锰5+），其亚稳态的有序结构将创建新的电子态组合。电子态多维空间的有序排列可以产生独特的输运特性。因此，锰酸钙钛矿的制备将为构建新一代量子器件提供强有力的化学支撑。本文总结了通过歧化反应在锰酸盐钙钛矿中构建三价共存亚稳态相的挑战和困难，并讨论了利用这种独特结构设计理想的整流p-n结的现状和潜力。最后，对该化学反应驱动的新量子态的前景进行了展望。