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RESEARCH PRODUCT
Engineering Topological Nodal Line Semimetals in Rashba Spin-Orbit Coupled Atomic Chains
Paola GentileVittorio BenvenutoCarmine OrtixCanio NoceMario CuocoStat & Comp Phys Sub Cond-matter TheoryTheoretical Physicssubject
FOS: Physical sciences02 engineering and technologySpace (mathematics)TopologyLambda01 natural sciencessemimetals0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)spin-orbit coupled systems010306 general physicsSpin (physics)Condensed Matter::Quantum GasesCouplingPhysicsCondensed Matter - Mesoscale and Nanoscale PhysicsAntiunitary operatorCharge (physics)topological phases021001 nanoscience & nanotechnologyCondensed Matter PhysicsSymmetry (physics)lcsh:QC1-999Electronic Optical and Magnetic MaterialsOrbit (dynamics)Computer Science::Programming LanguagesCondensed Matter::Strongly Correlated Electrons0210 nano-technologylcsh:Physicsdescription
We study an atomic chain in the presence of modulated charge potential and modulated Rashba spin-orbit coupling (RSOC) of equal period. We show that for commensurate periodicities $\lambda=4 n$ 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 antiunitary particle-hole symmetry. The location and shape of the nodal lines strongly depend on the relative amplitude between the charge potential and RSOC.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-16 | Condensed Matter |