Calculation of k2(T) for s-wave type-II superconductors

Kita, Takafumi

PHYSICAL REVIEW B, 2003, 68, 184503

Permalink : https://hdl.handle.net/2115/5743

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アクセス権	open access
URI	https://hdl.handle.net/2115/5743
タイトル	Calculation of k2(T) for s-wave type-II superconductors
著者	e-Rad_Researcher 20186224 著者名 Kita, Takafumi 北, 孝文
言語	英語
発行日	2003
出版者	American Physical Society
収録物名	PHYSICAL REVIEW B
巻(号)	68
ページ	184503
抄録	This paper presents revised calculations for the Maki parameters k1 and k2 and the pair potential Δ(r) of s-wave type-II superconductors near the upper critical field Hc2 with arbitrary impurity concentration. It is found that Eilenberger's well-known results on k2 [Phys. Rev. 153, 584 (1967)] are not correct quantitatively, which are modified appropriately. Calculations are also performed for a two-dimensional system with an isotropic Fermi surface. The results on clean systems differ substantially from those for the three-dimensional system with a spherical Fermi surface. This fact indicates the necessity of considering detailed Fermi-surface structures for a quantitative understanding of the parameters. The coefficient of Δ(r)(Hc2–B)1/2, which is basic to any theoretical evaluation of the thermodynamic and transport properties near Hc2, is obtained accurately.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 2003 American Physical Society
PISSN	0090-6778
関連情報	URI http://www.aps.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.68.184503