We study the quasiparticle transport coefficients in disordered d-wave superconductors. We find that spin and charge excitations are generally localized unless magnetic impurities are present. If the system is close to a nesting point in the impurity-scattering unitary limit, the tendency towards localization is reduced while the quasiparticle density of states gets enhanced by disorder. We also show that the residual repulsive interaction among quasiparticles has a delocalizing effect and increases the density of states.

Quasiparticle conductivities in disordered d-wave superconductors / Michele, Fabrizio; Luca, Dell'Anna; Castellani, Claudio. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 88:7(2002), pp. 076603-1-076603-4. [10.1103/physrevlett.88.076603]

Quasiparticle conductivities in disordered d-wave superconductors

CASTELLANI, Claudio
2002

Abstract

We study the quasiparticle transport coefficients in disordered d-wave superconductors. We find that spin and charge excitations are generally localized unless magnetic impurities are present. If the system is close to a nesting point in the impurity-scattering unitary limit, the tendency towards localization is reduced while the quasiparticle density of states gets enhanced by disorder. We also show that the residual repulsive interaction among quasiparticles has a delocalizing effect and increases the density of states.
2002
01 Pubblicazione su rivista::01a Articolo in rivista
Quasiparticle conductivities in disordered d-wave superconductors / Michele, Fabrizio; Luca, Dell'Anna; Castellani, Claudio. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 88:7(2002), pp. 076603-1-076603-4. [10.1103/physrevlett.88.076603]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/100479
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 13
  • ???jsp.display-item.citation.isi??? 10
social impact