Strongly anisotropic spin and orbital Rashba effect at a tellurium - noble metal interface
Geldiyev B, Ünzelmann M, Eck P, Kißlinger T, Schusser J, Figgemeier T, Kagerer P, Tezak N, Krivenkov M, Varykhalov A, Fedorov A, Nicolaï L, Minár J, Miyamoto K, Okuda T, Shimada K, Di Sante D, Sangiovanni G, Hammer L, Schneider MA, Bentmann H, Reinert F (2023)
Publication Type: Journal article
Publication year: 2023
Journal
Book Volume: 108
Article Number: L121107
Journal Issue: 12
DOI: 10.1103/PhysRevB.108.L121107
Abstract
We study the interplay of lattice, spin, and orbital degrees of freedom in a two-dimensional model system: a flat square lattice of Formula Presented atoms on a Formula Presented surface. The atomic structure of the Te monolayer is determined by scanning tunneling microscopy and quantitative low-energy electron diffraction. Using spin- and angle-resolved photoelectron spectroscopy and density functional theory, we observe a Te-Au interface state with highly anisotropic Rashba-type spin-orbit splitting at the Formula Presented point of the Brillouin zone. Based on a profound symmetry and tight-binding analysis, we show how in-plane square lattice symmetry and broken inversion symmetry at the Te-Au interface together enforce a remarkably anisotropic orbital Rashba effect which strongly modulates the spin splitting.
Authors with CRIS profile
Tilman Kißlinger
Lehrstuhl für Festkörperphysik
Lutz Hammer
Lehrstuhl für Festkörperphysik
Alexander Schneider
Professur für Experimentalphysik
Additional Organisation(s)
Involved external institutions
Julius-Maximilians-Universität Würzburg
Germany (DE)
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Germany (DE)
University of West Bohemia (UWB)
Czech Republic (CZ)
Hiroshima University
Japan (JP)
University of Bologna / Università di Bologna
Italy (IT)
Germany (DE)
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Germany (DE)
University of West Bohemia (UWB)
Czech Republic (CZ)
Hiroshima University
Japan (JP)
University of Bologna / Università di Bologna
Italy (IT)
How to cite
APA:
Geldiyev, B., Ünzelmann, M., Eck, P., Kißlinger, T., Schusser, J., Figgemeier, T.,... Reinert, F. (2023). Strongly anisotropic spin and orbital Rashba effect at a tellurium - noble metal interface. Physical Review B, 108(12). https://dx.doi.org/10.1103/PhysRevB.108.L121107
MLA:
Geldiyev, B., et al. "Strongly anisotropic spin and orbital Rashba effect at a tellurium - noble metal interface." Physical Review B 108.12 (2023).
BibTeX: Download