Features of spin-charge separation in the equilibrium conductance through finite rings

Julián Rincón, A. A. Aligia, K. Hallberg

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

20 Citas (Scopus)


We calculate the conductance through rings with few sites L described by the t-J model, threaded by a magnetic flux Φ and weakly coupled to conducting leads at two arbitrary sites. The model can describe a circular array of quantum dots with large charging energy U in comparison with the nearest-neighbor hopping t. We determine analytically the particular values of Φ for which a depression of the transmittance is expected as a consequence of spin-charge separation. We show numerically that the equilibrium conductance at zero temperature is depressed at those particular values of Φ for most systems, in particular at half filling, which might be easier to realize experimentally.

Idioma originalInglés estadounidense
Número de artículo035112
PublicaciónPhysical Review B - Condensed Matter and Materials Physics
EstadoPublicada - ene. 5 2009
Publicado de forma externa

Áreas temáticas de ASJC Scopus

  • Materiales electrónicos, ópticos y magnéticos
  • Física de la materia condensada


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