Localized anisotropic superconductors
نویسندگان
چکیده
منابع مشابه
Localized anisotropic superconductors
We address the question of whether an anisotropic gap of dx2−y2 symmetry is compatible with localized states in the normal phase. The issue is important for high-Tc superconductors for which a superconductor-to-insulator transition is observed, together with a number of experiments that support d-wave pairing. We prove that d-wave superconductivity is compatible with a localized normal state. W...
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Physical properties of anisotropic superconductors like the critical temperature and others depend sensitively on the electron mean free path. The sensitivity to impurity scattering and the resulting anomalies are considered a characteristic feature of strongly anisotropic pairing. These anomalies are usually analyzed in terms of s-wave impurity scattering which leads to universal pair breaking...
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A theory of nonmagnetic impurities in an anisotropic superconductor including the effect of anisotropic (momentum-dependent) impurity scattering is given. It is shown that for a strongly anisotropic scattering the reduction of the pair-breaking effect of the impurities is large. For a significant overlap between the anisotropy functions of the scattering potential and that of the pair potential...
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Anisotropic superconductivity has been studied in a variety of one-dimensional, ' intercalated, s and artificially prepared" " systems. Much of the experimental work in these systems is related to measurements of the temperature and angular dependence of the upper critical fields H, 2. In many cases, the experiments determine the critical field at which surface superconductivity nucleates, i.e....
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Yuansen Xiong 1, Ai Yamakage 1,2,*, Shingo Kobayashi 1,2, Masatoshi Sato 3 and Yukio Tanaka 1 1 Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan; [email protected] (Y.X.); [email protected] (S.K.); [email protected] (Y.T.) 2 Institute for Advanced Research, Nagoya University, Nagoya 464-8601, Japan 3 Yukawa Institute for Theoretical P...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 1998
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/10/34/012