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- W4376876949 abstract "The van der Waals (vdW) MnSb 4 Te 7 is a newly synthesized antiferromagnetic (AFM) topological insulator hosting a robust axion insulator state irrelative to the specific spin structure. However, the intrinsic hole doped character of MnSb 4 Te 7 makes the Fermi level far away from the Dirac point of about 180 meV, which is unfavorable for the exploration of exotic topological properties such as the quantum anomalous Hall effect (QAHE). To shift up the Fermi level close to the Dirac point, the strategy of partially replacing Sb with Bi as Mn(Sb 1− x Bi x ) 4 Te 7 was tried and the magnetotransport properties, in particular, the anomalous Hall effect, were measured and analyzed. Through the electron doping, the anomalous Hall conductance σ AH changes from negative to positive between x = 0.3 and 0.5, indicative of a possible topological transition. Besides, a charge neutrality point (CNP) also appears between x = 0.6 and 0.7. The results would be instructive for further understanding the interplay between nontrivial topological states and the magnetism, as well as for the exploration of exotic topological properties." @default.
- W4376876949 created "2023-05-18" @default.
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- W4376876949 date "2023-09-01" @default.
- W4376876949 modified "2023-10-01" @default.
- W4376876949 title "Doping tuned anomalous Hall effect in the van der Waals magnetic topological phases Mn(Sb<sub>1 − x </sub>Bi<sub> x </sub>)<sub>4</sub>Te<sub>7</sub>" @default.
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- W4376876949 doi "https://doi.org/10.1088/1674-1056/acd629" @default.
- W4376876949 hasPublicationYear "2023" @default.
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