Tailoring Robust Quantum Anomalous Hall Effect via Entropy-Engineering.

ABSTRACT: The development of quantum materials and the tailoring of their functional properties is of fundamental interest in materials science. Here, a new design concept is proposed for the robust quantum anomalous Hall (QAH) effect via entropy engineering in 2D magnets. As a prototypical example, the configurational entropy of monolayer transition metal trihalide VCl₃ is manipulated by incorporating four different transition-metal cations [Ti,Cr,Fe,Co] into the honeycomb structure made of vanadium, such that all in-plane mirror symmetries, inversion and/or roto-inversion are broken. Monolayer VCl₃ is a ferromagnetic Dirac half-metal in which spin-polarized Dirac dispersion at valley momenta is accompanied by bulk states at the Γ-point and thus the spin-orbit interaction-driv

SUBMITTER: Shabbir SA 

PROVIDER: S-EPMC12422079 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature