Year: 2019
Type: article
Abstract: In this paper, we study an atomic chain in the presence of modulated charge potential and modulated Rashba spin-orbit coupling (RSOC) of equal periods. We show that for commensurate periodicities, λ = 4 n with integer n, the three-dimensional synthetic space obtained by sliding the two phases of the charge potential and RSOC features a topological nodal-line semimetal protected by an anti-unitary particle-hole symmetry. The location and shape of the nodal lines strongly depend on the relative amplitude between the charge potential and RSOC.
Source: Condensed Matter
Authors: Paola Gentile, Vittorio Benvenuto, Carmine Ortix, Canio Noce, Mario Cuoco
Institutions: University of Salerno, Utrecht University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,013
OpenAlex ID: W2916607227