Ferromagnetic/ferroelectric heterostructures provide an effective avenue for designing new functional materials with novel properties by combining the advantages of different materials. In this context, we investigate systematically the structure, electronic properties, and ferromagnetism of CrTeI/InSe heterostructures using the first-principles calculations. Through the incorporation of the ferroelectric InSe, we modulate the magnetocrystalline anisotropy, exchange interactions, Dzyaloshinskii-Moriya interaction, and other key magnetic parameters of the ferromagnetic CrTeI. Consequently, the easy magnetization direction can be reorientated from in-plane to out-of-plane by switching the electric polarization direction. The enhancement of ferromagnetic coupling and the weakening of antiferromagnetic coupling raise the Curie temperature significantly. Simultaneously, the modulation of the magnetic parameters refines the conditions for forming skyrmions in the heterostructures. The findings in this work hold reference value for understanding the ferroelectric control of ferromagnetism and benefit the applications of two dimensional magnetic materials in spintronics.

中文翻译：

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CrTeI/In2Se3 异质结构中铁磁性的铁电控制：第一性原理研究

铁磁/铁电异质结构为结合不同材料的优点来设计具有新颖性能的新型功能材料提供了有效途径。在此背景下，我们使用第一性原理计算系统地研究了 CrTeI/InSe 异质结构的结构、电子特性和铁磁性。通过掺入铁电 InSe，我们可以调节铁磁 CrTeI 的磁晶各向异性、交换相互作用、Dzyaloshinskii-Moriya 相互作用以及其他关键磁参数。因此，通过切换电极化方向，可以将易磁化方向从面内重新定向到面外。铁磁耦合的增强和反铁磁耦合的减弱显着提高了居里温度。同时，磁参数的调制改善了异质结构中形成斯格明子的条件。该工作的研究结果对于理解铁磁性的铁电控制具有参考价值，并有利于二维磁性材料在自旋电子学中的应用。