edoc

Hinge states in a system of coupled Rashba layers

Plekhanov, Kirill and Ronetti, Flavio and Loss, Daniel and Klinovaja, Jelena. (2020) Hinge states in a system of coupled Rashba layers. Physical Review Research, 2 (1). 013083.

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/80691/

Downloads: Statistics Overview

Abstract

We consider a system of stacked tunnel-coupled two-dimensional electron- and hole-gas layers with Rashba spin-orbit interaction subjected to a staggered Zeeman field. The interplay of different intralayer tunnel couplings results in a topological insulator phase characterized by the presence of gapless helical surface states. The staggered Zeeman field further enriches the topological phase diagram by generating a second-order topological insulator phase characterized by the presence of gapless hinge states. The emergence of these topological phases is proven analytically in the regime of small Zeeman field and confirmed by numerical simulations in the nonperturbative region of the phase diagram. The topological phases are stable against external perturbations and disorder.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretical Nano/Quantum Physics (Klinovaja)
UniBasel Contributors:Klinovaja, Jelena
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
e-ISSN:2643-1564
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:20 Apr 2021 15:29
Deposited On:20 Apr 2021 15:29

Repository Staff Only: item control page