Phase-coherent caloritronics with ordinary and topological Josephson junctions

SY Hwang, B Sothmann - The European Physical Journal Special Topics, 2020 - Springer
We provide a brief and comprehensive overview over recent developments in the field of
phase-coherent caloritronics in ordinary and topological Josephson junctions. We start from …

Interplay of quantum spin Hall effect and spontaneous time-reversal symmetry breaking in electron-hole bilayers. I. Transport properties

T Paul, VF Becerra, T Hyart - Physical Review B, 2022 - APS
The band-inverted electron-hole bilayers, such as InAs/GaSb, are an interesting playground
for the interplay of quantum spin Hall effect and correlation effects because of the small …

Gapless insulating edges of dirty interacting topological insulators

YZ Chou, RM Nandkishore, L Radzihovsky - Physical Review B, 2018 - APS
We demonstrate that a combination of disorder and interactions in a two-dimensional bulk
topological insulator can generically drive its helical edge insulating. We establish this within …

Energy gap tuning and gate-controlled topological phase transition in composite quantum wells

H Irie, T Akiho, F Couëdo, K Suzuki, K Onomitsu… - Physical Review …, 2020 - APS
We report transport measurements of strained InAs/In x Ga 1− x Sb composite quantum
wells (CQWs) in the quantum spin Hall phase, focusing on the control of the energy gap …

Phase-tunable thermal rectification in the topological SQUIPT

L Bours, B Sothmann, M Carrega, E Strambini… - Physical Review …, 2019 - APS
We theoretically explore the behavior of thermal transport in the topological SQUIPT, in the
linear and nonlinear regime. The device consists of a topological Josephson junction based …

Anomalous de Haas–van Alphen Effect in Quantum Wells

J Knolle, NR Cooper - Physical Review Letters, 2017 - APS
The de Haas–van Alphen effect describes the periodic oscillation of the magnetization in a
material as a function of an inverse applied magnetic field. It forms the basis of a well …

Probing topological transitions in HgTe/CdTe quantum wells by magneto-optical measurements

B Scharf, A Matos-Abiague, I Žutić, J Fabian - Physical Review B, 2015 - APS
In two-dimensional topological insulators, such as inverted HgTe/CdTe quantum wells,
helical quantum spin Hall (QSH) states persist even at finite magnetic fields below a critical …

Topological SQUIPT based on helical edge states in proximity to superconductors

L Bours, B Sothmann, M Carrega, E Strambini… - Physical Review …, 2018 - APS
We propose a device based on a topological Josephson junction where the helical edge
states of a two-dimensional (2D) topological insulator are in close proximity to two …

Hidden edge Dirac point and robust quantum edge transport in InAs/GaSb quantum wells

CA Li, SB Zhang, SQ Shen - Physical Review B, 2018 - APS
The robustness of quantum edge transport in InAs/GaSb quantum wells in the presence of
magnetic fields raises an issue on the fate of topological phases of matter under time …

Stability of periodically driven topological phases against disorder

O Shtanko, R Movassagh - Physical Review Letters, 2018 - APS
In recent experiments, time-dependent periodic fields are used to create exotic topological
phases of matter with potential applications ranging from quantum transport to quantum …