scholarly journals Effect of strong disorder in a three-dimensional topological insulator: Phase diagram and maps of theZ2invariant

2012 ◽  
Vol 85 (20) ◽  
Author(s):  
Bryan Leung ◽  
Emil Prodan
Keyword(s):  
Phase Diagram ◽  
Topological Insulator ◽  
Three Dimensional ◽  
Strong Disorder

Topological phases of a three-dimensional topological insulator with structure inversion asymmetry

2015 ◽  
Vol 29 (06) ◽  
pp. 1550034 ◽  
Author(s):  
Xiaoyong Guo ◽  
Zaijun Wang ◽  
Qiang Zheng ◽  
Jie Peng
Keyword(s):  
Phase Diagram ◽  
Topological Insulator ◽  
Tight Binding ◽  
Three Dimensional ◽  
Surface States ◽  
Topological Phases ◽  
Zeeman Field ◽  
Surface Modes ◽  
Inversion Asymmetry ◽  
Structure Inversion

We investigate the topological phases of a three-dimensional (3D) topological insulator (TI) without the top–bottom inversion symmetry. We calculate the momentum depended spin Chern number to extract the phase diagram. Various phases are found and we address the dependence of phase boundaries on the strength of inversion asymmetry. Opposite to the quasi-two-dimensional thin film TI, in our 3D system the TI state is stabilized by the structure inversion asymmetry (SIA). With a strong SIA the 3D TI phase can exist even under a large Zeeman field. In a tight-binding form, the surface modes are discussed to confirm with the phase diagram. Particularly we find that the SIA cannot destroy the surface states but open a gap on its spectrum.

scholarly journals Erratum: Magnetotransport signatures of three-dimensional topological insulator nanostructures [Phys. Rev. B 97 , 245429 (2018)]

2021 ◽  
Vol 103 (7) ◽  
Author(s):  
Kristof Moors ◽  
Peter Schüffelgen ◽  
Daniel Rosenbach ◽  
Tobias Schmitt ◽  
Thomas Schäpers ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Three Dimensional

Phase Diagram of the Fulde-Ferrell-Larkin-Ovchinnikov State in a Three-Dimensional Superconductor

1998 ◽  
Vol 67 (1) ◽  
pp. 280-289 ◽  
Author(s):  
Shigemasa Matsuo ◽  
Seiji Higashitani ◽  
Yasushi Nagato ◽  
Katsuhiko Nagai
Keyword(s):  
Phase Diagram ◽  
Three Dimensional

scholarly journals Mobility spectrum analysis on three-dimensional topological insulator BiSbTeSe2

2021 ◽  
Vol 118 (25) ◽  
pp. 253107
Author(s):  
Jimin Wang ◽  
Alexander Kurzendorfer ◽  
Lin Chen ◽  
Zhiwei Wang ◽  
Yoichi Ando ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Spectrum Analysis ◽  
Three Dimensional ◽  
Mobility Spectrum

scholarly journals Exceptional topological insulators

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
M. Michael Denner ◽  
Anastasiia Skurativska ◽  
Frank Schindler ◽  
Mark H. Fischer ◽  
Ronny Thomale ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Three Dimensional ◽  
Surface States ◽  
Exceptional Point ◽  
Weyl Semimetal ◽  
Complex Eigenvalues ◽  
Topological State ◽  
Single Sheet ◽  
Bulk Energy ◽  
State Of Matter

AbstractWe introduce the exceptional topological insulator (ETI), a non-Hermitian topological state of matter that features exotic non-Hermitian surface states which can only exist within the three-dimensional topological bulk embedding. We show how this phase can evolve from a Weyl semimetal or Hermitian three-dimensional topological insulator close to criticality when quasiparticles acquire a finite lifetime. The ETI does not require any symmetry to be stabilized. It is characterized by a bulk energy point gap, and exhibits robust surface states that cover the bulk gap as a single sheet of complex eigenvalues or with a single exceptional point. The ETI can be induced universally in gapless solid-state systems, thereby setting a paradigm for non-Hermitian topological matter.

Quantum capacitance of a three-dimensional topological insulator based on HgTe

2017 ◽  
Vol 43 (4) ◽  
pp. 430-436
Author(s):  
D. A. Kozlov ◽  
D. Bauer ◽  
J. Ziegler ◽  
R. Fischer ◽  
M. L. Savchenko ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Three Dimensional ◽  
Quantum Capacitance
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