Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session N59: Noninteracting Topological Insulators and Topological Crystalline Insulators in Solid-State Materials
11:30 AM–2:18 PM,
Wednesday, March 16, 2022
Room: Hyatt Regency Hotel -DuSable AB
Chair: Benjamin Wieder, Massachusetts Institute of Technology
Abstract: N59.00002 : Transport measurements in Porous Bi2Te3 thin films*
11:42 AM–11:54 AM
Presenter:
Golrokh Akhgar
(Monash University)
Authors:
Golrokh Akhgar
(Monash University)
Alexander Nguyen
(Monash Univesity)
David Cortie
(University of Wollongong)
Abuduliken Bake
(University of Wollongong)
Weiyao Zhao
(Monash University)
Chang Liu
(Monash University)
Michael S Fuhrer
(Monash University)
Dimitrie Culcer
(University of New South Wales)
Alex R Hamilton
(University of New South Wales)
Mark T Edmonds
(Monash University)
Julie Karel
(Monash University)
In this talk we will present magnetoresistance measurements on porous Bi2Te3, where weak anti-localisation (WAL) was observed. The magnetoresistance curves were fitted using a Dirac Fermion model specifically derived to model weak antilocalization in TIs [3]. Our results also show that the temperature dependence of the phase coherence length in porous Bi2Te3, with an increased surface to volume ratio, exhibits 2D-like transport.
*Australian Research Council Centre for Excellence Future Low Energy Electronics Technologies (CE170100039)
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