Tegenkamp, C.; Lükermann, D.; Pfnür, H.; Slomski, B.; Landolt, G.; Dil, J.H.: Fermi nesting between atomic wires with strong spin-orbit coupling. In: Physical Review Letters 109 (2012), Nr. 26, No. 266401. DOI:
https://doi.org/10.1103/PhysRevLett.109.266401
Zusammenfassung: |
The mutual interplay between superlattice structures, band filling factors, and spin-orbit coupling results in a highly correlated electronic spin and charge state found for an array of atomic Pb wires grown on Si(557). By means of spin- and angle-resolved photoemission spectroscopy, the spin texture close to the Fermi surface was found to be alternating and equidistant; thus, Fermi nesting occurs in between bands with the same spin helicity, giving rise to spin-polarized charge-density waves in the direction across the wires. An out-of-phase superposition of both Rashba channels is manifested by an extraordinary large Rashba splitting of Δk0=0.2 Å−1=g/2, where g is a reciprocal lattice vector defined by the interwire distance and fits into the model of spin-density waves in antiferromagnetically ordered chain structures. The implications towards spin-polarized transport along the wires will be discussed. © 2012 American Physical Society.
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Publikationstyp: |
Article |
Publikationsstatus: |
publishedVersion |
Erstveröffentlichung: |
2012 |
Schlagwörter (englisch): |
Angle resolved photoemission spectroscopy, Atomic wires, Band fillings, Chain structure, Charge state, Electronic spins, Helicities, Highly-correlated, Inter-wire distances, Out of phase, Reciprocal lattice vectors, Spin polarized transport, Spin textures, Spin-orbit couplings, Spin-polarized, Super-lattice structures, Charge density, Lead, Photoelectron spectroscopy, Wire
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Fachliche Zuordnung (DDC): |
530 | Physik
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