4/4/2023 0 Comments A.t.o.m. janus lee![]() Our analysis of these emerging pristine and Janus-phased magnetic semiconductors opens prospects for studying the interplay between magnetism and topology in two-dimensional materials. Furthermore, we observed a correlation-driven topological transition in the Janus VSiGeP 2As 2. ![]() ![]() We found an out-of-plane (in-plane) magnetization for VSi 2P 4 (VSi 2As 4), and an in-plane magnetization for VSiGeP 2As 2. A large value of coupling J is obtained, and this, together with the magnetocrystalline anisotropy, will produce a large critical temperature. It is revealed that all three monolayers exhibit ferromagnetic ground state ordering, which is robust even under biaxial strains. In the Janus phase the compound presents a breaking of the mirror symmetry, which is equivalent to having an electric field, and the system can be piezoelectric. Here, the first-principles approach is used to investigate the electronic band structures, the strain dependence of MAE in pristine VSi 2Z 4 (Z = P, As) and its Janus phase VSiGeP 2As 2 and the evolution of the topology as a function of the Coulomb interaction. The magnetic anisotropy energy (MAE) describing the easy axis for magnetization in a particular direction is an important yardstick for nanoscale applications. The appearance of intrinsic ferromagnetism in 2D materials opens the possibility of investigating the interplay between magnetism and topology. ![]()
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