Competition between magnetic and superconducting pairing exchange interactions in confined systems (Articolo in rivista)

Type
Label
  • Competition between magnetic and superconducting pairing exchange interactions in confined systems (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ying, ZJ; Cuoco, M; Noce, C; Zhou, HQ (2007)
    Competition between magnetic and superconducting pairing exchange interactions in confined systems
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ying, ZJ; Cuoco, M; Noce, C; Zhou, HQ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 76 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INFM, CNR, Lab Reg Supermat, I-84081 Salerno, Italy; Univ Salerno, Dipartimento Fis ER Gaianiello, I-400044 Salerno, Italy; Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China; Univ Queensland, Sch Phys Sci, Brisbane, Qld 4072, Australia (literal)
Titolo
  • Competition between magnetic and superconducting pairing exchange interactions in confined systems (literal)
Abstract
  • We analyze the competition between magnetic and pairing interactions in confined systems relevant to either small superconducting grains or trapped ultracold atomic gases. The response to the imbalance of the chemical potential for the two spin states leads to various inhomogeneous profiles of the pair energy distribution. We show that the position in the energy spectrum for the unpaired particles can be tuned by varying the filling or the pairing strength. When small grains are considered, the antiferromagnetic exchange stabilizes the pair correlations, whereas for Fermi gases, a transition from a mixed configuration to a phase-separated one beyond a critical polarization threshold appears, as does an unconventional phase with a paired shell around a normal core. (literal)
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