Valley-polarized quantum anomalous Hall effect in van der Waals heterostructures based on monolayer jacutingaite family materials
نویسندگان
چکیده
We numerically study the general valley polarization and anomalous Hall effect in van der Waals (vdW) heterostructures based on monolayer jacutingaite family materials Pt2AX3 (A = Hg, Cd, Zn; X S, Se, Te). perform a systematic atomic, electronic, topological properties of vdW composed two-dimensional ferromagnetic insulators. show that four kinds exhibit valley-polarized quantum phase, i.e., Pt2HgS3/NiBr2, Pt2HgSe3/CoBr2, Pt2HgSe3/NiBr2, Pt2ZnS3/CoBr2, with maximum splitting 134.2 meV Pt2HgSe3/NiBr2 sizable global band gap 58.8 Pt2HgS3/NiBr2. Our findings demonstrate an ideal platform to implement applications valleytronics.
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ژورنال
عنوان ژورنال: Frontiers of Physics in China
سال: 2022
ISSN: ['2095-0470', '2095-0462']
DOI: https://doi.org/10.1007/s11467-022-1228-4