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Molecular Beam Epitaxy Growth and Electronic Structures of Monolayer GdTe3.

Authors :
Xu, Zhilin
Ji, Shuai-Hua
Tang, Lin
Wu, Jian
Li, Na
Cai, Xinqiang
Chen, Xi
Source :
Chinese Physics Letters; Jul2021, Vol. 38 Issue 7, p1-5, 5p
Publication Year :
2021

Abstract

GdTe<subscript>3</subscript> is a layered antiferromagnetic (AFM) metal with charge density wave (CDW). We grew monolayer (ML) GdTe<subscript>3</subscript> on graphene/6H-SiC(0001) substrates by molecular beam epitaxy. The electronic and magnetic structures are studied by scanning tunneling microscopy/spectroscopy, quasi-particle interference (QPI) and first-principles calculations. Strong evidence of CDW persisting at the two-dimensional (2D) limit is found. Band dispersions and partially gapped energy bands near the Fermi surface are revealed by the QPI patterns. By density functional theory +U calculations, AFM order with stripe pattern is found to be the magnetic ground state for ML GdTe<subscript>3</subscript>. These results provide fundamental understanding and pave the way for further investigation of GdTe<subscript>3</subscript> at the 2D limit. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0256307X
Volume :
38
Issue :
7
Database :
Complementary Index
Journal :
Chinese Physics Letters
Publication Type :
Academic Journal
Accession number :
154862642
Full Text :
https://doi.org/10.1088/0256-307X/38/7/077102