Parity dependent Josephson current through a helical Luttinger liquid (Articolo in rivista)

Type
Label
  • Parity dependent Josephson current through a helical Luttinger liquid (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1367-2630/15/8/085025 (literal)
Alternative label
  • Barbarino S. [ 1,2 ] ; Fazio R. [ 1,2 ] ; Sassetti M. [ 3,4 ] ; Taddei F. [ 1,2 ] (2013)
    Parity dependent Josephson current through a helical Luttinger liquid
    in New journal of physics; IOP PUBLISHING LTD, BRISTOL BS1 6BE (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Barbarino S. [ 1,2 ] ; Fazio R. [ 1,2 ] ; Sassetti M. [ 3,4 ] ; Taddei F. [ 1,2 ] (literal)
Pagina inizio
  • 85025 (literal)
Pagina fine
  • 85025 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 15 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Scuola Normale Super Pisa, NEST, I-56126 Pisa, Italy [ 2 ] Ist Nanosci CNR, I-56126 Pisa, Italy [ 3 ] Univ Genoa, Dipartimento Fis, I-14146 Genoa, Italy [ 4 ] CNR SPIN, I-14146 Genoa, Italy (literal)
Titolo
  • Parity dependent Josephson current through a helical Luttinger liquid (literal)
Abstract
  • We consider a superconductor-two dimensional topological insulator-superconductor junction and study how the 2 pi- and 4 pi- periodic Josephson currents are affected by the electron-electron interaction. In the long-junction limit the supercurrent can be evaluated by modeling the system as a helical Luttinger liquid coupled to superconducting reservoirs. After having introduced bosonization in the presence of the parity constraint we turn to consider the limit of perfect and poor interfaces. For transparent interfaces, where perfect Andreev reflections occur at the boundaries, the Josephson current is marginally affected by the interaction. However, if strong magnetic scatterers are present in the weak link, the situation changes dramatically. Here Coulomb interaction plays a crucial role both in low and high temperature regimes. Furthermore, a phase-shift of Josephson current can be induced by changing the direction of the magnetization of the impurity. (literal)
Editore
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Editore di
data.CNR.it