Valley-polarized quantum anomalous Hall effect in van der Waals heterostructures based on monolayer jacutingaite family materials - Details

author：

Zhu, X. (Zhu, X..) ^[1] | Chen, Y. (Chen, Y..) ^[2] | Liu, Z. (Liu, Z..) ^[3] | Han, Y. (Han, Y..) ^[4] | Qiao, Z. (Qiao, Z..) ^[5]

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Scopus CSCD

Abstract：

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).　We　perform　a　systematic　study　on　the　atomic,　electronic,　and　topological　properties　of　vdW　heterostructures　composed　of　monolayer　Pt2AX3　and　two-dimensional　ferromagnetic　insulators.　We　show　that　four　kinds　of　vdW　heterostructures　exhibit　valley-polarized　quantum　anomalous　Hall　phase,　i.e.,　Pt2HgS3/NiBr2,　Pt2HgSe3/CoBr2,　Pt2HgSe3/NiBr2,　and　Pt2ZnS3/CoBr2,　with　a　maximum　valley　splitting　of　134.2　meV　in　Pt2HgSe3/NiBr2　and　sizable　global　band　gap　of　58.8　meV　in　Pt2HgS3/NiBr2.　Our　findings　demonstrate　an　ideal　platform　to　implement　applications　on　topological　valleytronics.　[Figure　not　available:　see　fulltext.].　©　2023,　Higher　Education　Press.

Keyword：

first-principles calculations jacutingaite family materials quantum anomalous Hall effect topological valleytronics transition metal dichalcogenides valley polarization van der Waals heterostructure

Community：

[ 1 ] [Zhu, X.]ICQD, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
[ 2 ] [Zhu, X.]CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, and Department of Physics, University of Science and Technology of China, Hefei, 230026, China
[ 3 ] [Chen, Y.]ICQD, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
[ 4 ] [Chen, Y.]CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, and Department of Physics, University of Science and Technology of China, Hefei, 230026, China
[ 5 ] [Liu, Z.]ICQD, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
[ 6 ] [Liu, Z.]CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, and Department of Physics, University of Science and Technology of China, Hefei, 230026, China
[ 7 ] [Han, Y.]Department of Physics, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Qiao, Z.]ICQD, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
[ 9 ] [Qiao, Z.]CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, and Department of Physics, University of Science and Technology of China, Hefei, 230026, China

Reprint 's Address：

[Liu, Z.]ICQD, China;;[Qiao, Z.]ICQD, China;;[Han, Y.]Department of Physics, China

Email：

zhengliu@mail.ustc.edu.cn |
qiao@ustc.edu.cn |
han@fzu.edu.cn

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Source ：

Frontiers of Physics

ISSN： 2095-0462

Year： 2023

Issue： 2

Volume： 18

6 . 5

JCR@2023

6 . 5 0 0

JCR@2023

ESI HC Threshold：30

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 8

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 4

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