Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session A03: Low Dimensional Topological Materials: Growth, Characterization and Imaging
8:00 AM–11:00 AM,
Monday, March 4, 2024
Room: L100C
Sponsoring
Unit:
DMP
Chair: Wenhao Liu, University of Texas at Dallas
Abstract: A03.00011 : Surface Enhanced Quasi-VdW Epitaxy of Magnetic Topological Insulators on III-V substrates at the Boundary of Mass-Transport Flow and Adsorption Control Mode
10:24 AM–10:36 AM
Presenter:
Yuxing Ren
(University of California, Los Angeles)
Authors:
Yuxing Ren
(University of California, Los Angeles)
Lixuan Tai
(University of California, Los Angeles)
Kaicheng Pan
(University of California, Los Angeles)
Siddharth Srivastava
(University of California, Los Angeles)
Mark Goorsky
(University of California, Los Angeles)
Kang L Wang
(University of California, Los Angeles)
In this work we have examined hetero-epitaxy of Cr:(BixSb1-x)2Te3 and other magnetic topological insulators on III-V substrates by MBE (Molecular Beam Epitaxy). Simulations are used to compare with both in-situ and ex-situ characterization methods. Growth window of quantization regime are also studied. By controlling source flux and substrate temperatures, we have identified the growth of samples with quantum anomalous Hall effect at the boundary of mass-transport flow and adsorption-control mode on GaAs (111) substrates.
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