Spin current pumping in helical Luttinger liquids (Articolo in rivista)

Type
Label
  • Spin current pumping in helical Luttinger liquids (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.87.245419 (literal)
Alternative label
  • D. Ferraro1,2,3,4, G. Dolcetto1,2,3, R. Citro5,6, F. Romeo5,6, and M. Sassetti1,2 (2013)
    Spin current pumping in helical Luttinger liquids
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Ferraro1,2,3,4, G. Dolcetto1,2,3, R. Citro5,6, F. Romeo5,6, and M. Sassetti1,2 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84879700439&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 87 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 24 (literal)
Note
  • Scopu (literal)
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  • 1Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146, Genova, Italy 2CNR-SPIN, Via Dodecaneso 33, 16146, Genova, Italy 3INFN, Via Dodecaneso 33, 16146, Genova, Italy 4Université de Lyon, Fédération de Physique André Marie Ampère, CNRS - Laboratoire de Physique de l'Ecole Normale Supérieure de Lyon, 46 Allée d'Italie, 69364 Lyon Cedex 07, France 5Dipartimento di Fisica \"E. R. Caianiello,\" Università degli Studi di Salerno, Via Ponte don Melillo, I-84084, Fisciano (Sa), Italy 6CNR-SPIN, UO Salerno, Via Ponte don Melillo, I-84084, Fisciano (Sa), Italy (literal)
Titolo
  • Spin current pumping in helical Luttinger liquids (literal)
Abstract
  • We study parametric quantum pumping in a two-dimensional topological insulator bar in the presence of electron interactions described by a helical Luttinger liquid. The pumping current is generated by two point contacts whose tunneling amplitudes are modulated in time. The helical nature of the edge states of the system ensures the generation of a pumped spin current that is determined by interference effects related to spin-flipping or spin-preserving tunneling at the quantum point contacts and which can be controlled by all electrical means. We show that the period of oscillation and the position of the zeros of the spin current depend on the strength of the electron interactions, giving the opportunity to directly extract information about them when measured. © 2013 American Physical Society. (literal)
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