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- W2078480239 abstract "Based on first-principles calculations, we find novel valley-polarized quantum anomalous Hall (VP-QAH) phases with a large gap-0.19 eV at an appropriate buckled angle and tunable topological phase transitions driven by the spontaneous magnetization within a half-hydrogenated Bi honeycomb monolayer. Depending on the magnetization orientation, four different phases can emerge, i.e., two VP-QAH phases, ferromagnetic insulating and metallic states. When the magnetization is reversed from the +$mathbf{z}$ to -$mathbf{z}$ directions, accompanying with a sign change in the Chern number (from -1 to +1), the chiral edge state is moved from valley $K$ to $K'$. Our findings provide a platform for designing dissipationless electronics and valleytronics in a more robust manner through the tuning of the magnetization orientation." @default.
- W2078480239 created "2016-06-24" @default.
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- W2078480239 date "2015-04-27" @default.
- W2078480239 modified "2023-10-14" @default.
- W2078480239 title "Valley-polarized quantum anomalous Hall phases and tunable topological phase transitions in half-hydrogenated Bi honeycomb monolayers" @default.
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- W2078480239 doi "https://doi.org/10.1103/physrevb.91.165430" @default.
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