Resistance fluctuation spectroscopy of thin films of 3D topological insulator BiSbTeSe1. 6

S Biswas, RK Gopal, S Singh, R Kant, C Mitra… - Applied Physics …, 2019 - pubs.aip.org
Despite several years of studies, the origin of slow-kinetics of charge-carriers at the surface-
states of strong topological insulators remains abstruse. In this article, we report on studies …

[HTML][HTML] Mobility spectrum analysis on three-dimensional topological insulator BiSbTeSe2

J Wang, A Kurzendorfer, L Chen, Z Wang… - Applied Physics …, 2021 - pubs.aip.org
We conducted mobility spectrum analysis on a high quality three dimensional topological
insulator film of BiSbTeSe 2 to extract mobility μ and carrier density n. Top and bottom gates …

Charge puddles in the bulk and on the surface of the topological insulator studied by scanning tunneling microscopy and optical spectroscopy

T Knispel, W Jolie, N Borgwardt, J Lux, Z Wang, Y Ando… - Physical Review B, 2017 - APS
The topological insulator BiSbTeSe 2 corresponds to a compensated semiconductor in
which strong Coulomb disorder gives rise to the formation of charge puddles, ie, local …

Spatially varying electronic dephasing in three-dimensional topological insulators

A Banerjee, A Sundaresh, R Ganesan, PS Anil Kumar - Physical Review B, 2018 - APS
Information processing devices operating in the quantum mechanical regime strongly rely
on the quantum coherence of charge carriers. Studies of electronic dephasing in …

[HTML][HTML] In situ disentangling surface state transport channels of a topological insulator thin film by gating

F Lüpke, S Just, M Eschbach, T Heider… - npj Quantum …, 2018 - nature.com
In the thin film limit, the surface state of a three-dimensional topological insulator gives rise
to two parallel conduction channels at the top and bottom surface of the film, which are …

Low carrier concentration crystals of the topological insulator Bi2− xSbxTe3− ySey: a magnetotransport study

Y Pan, D Wu, JR Angevaare, H Luigjes… - New journal of …, 2014 - iopscience.iop.org
In 3D topological insulators achieving a genuine bulk-insulating state is an important
research topic. Recently, the material system (Bi, Sb) 2 (Te, Se) 3 (BSTS) has been …

[HTML][HTML] Nanoscale electron transport at the surface of a topological insulator

S Bauer, CA Bobisch - Nature Communications, 2016 - nature.com
The use of three-dimensional topological insulators for disruptive technologies critically
depends on the dissipationless transport of electrons at the surface, because of the …

[HTML][HTML] Resistivity of Surface Steps in Bulk-Insulating Topological Insulators

W Ko, S Hus, H Kim, JS Kim, XG Zhang, AP Li - Frontiers in Materials, 2022 - frontiersin.org
Electron transport in topological insulators usually involves both topologically protected
surface states and trivial electronic states in the bulk material. The surface transport is …

Magnetoresistance oscillations in MBE-grown Sb2Te3 thin films

C Weyrich, T Merzenich, J Kampmeier, IE Batov… - Applied Physics …, 2017 - pubs.aip.org
We report on the Shubnikov–de Haas oscillations in the longitudinal resistance of thin films
of three-dimensional topological insulator Sb 2 Te 3 grown by means of molecular beam …

Universal conductance fluctuations in a Bi1. 5Sb0. 5Te1. 8Se1. 2 topological insulator nano-scaled Hall bar structure

E Zimmermann, J Kölzer, M Schleenvoigt… - Semiconductor …, 2023 - iopscience.iop.org
We present low-temperature magnetotransport measurements characterizing the promising
quaternary Bi 1.5 Sb 0.5 Te 1.8 Se 1.2 topological insulator material. The measurements …