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Physical Review Letters
Volumn 61, Issue 23, 1988, Pages 2709-2712
Pairing-bag excitations in small-coherence-length superconductors
Author keywords

[No Author keywords available]
Indexed keywords

EID: 9344232928     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.61.2709     Document Type: Article
Times cited : (38)
References (16)
  • 4
    • 84927452113 scopus 로고    scopus 로고
    • L. P. Gor'kov and N. B. Kopnin, to be published.
  • 10
    • 84927452112 scopus 로고    scopus 로고
    • Note that spin bags occur in an antiferromagnetic background as the system tries to maintain nesting of the Fermi surface. Superconductivity, in contrast, is insensitive to nesting but sensitive to the density of states.
  • 13
    • 84927452111 scopus 로고    scopus 로고
    • The complex order parameter is essential for time- and magnetic field-dependent effects, as will be described elsewhere.
  • 14
    • 84927452110 scopus 로고    scopus 로고
    • We have also investigated an equivalent minimization of the total energy (9).
  • 15
    • 84927452109 scopus 로고    scopus 로고
    • For zero chemical potential, BCS pairing in a small system occurs in a set of degenerate states for N even and in a small insulating gap for N odd. Thus as V0-> 0, DELTA is proportional to V0 for N even and zero for N odd, in contrast to the exponential dependence in an infinite system. When V0 increases sufficiently that xi is less than the system size L, a crossover occurs and DELTA approximates the infinite-system value.
  • 16
    • 84927452108 scopus 로고    scopus 로고
    • There are two important length scales: the mean xi (determined by V0/ t) and the range of interaction in Vnm, which determines a ``core'' size within xi.

* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.