Anisotropic superconductivity in borocarbide superconductors and spin disorder

Anisotropic superconductivity in borocarbide superconductors and spin disorder

We present microscopic measurements indicating that the superconducting gap of borocarbide superconductors is strongly anisotropic. They are compared to macroscopic B c2 measurements on TmNi 2B 2C, which allow a direct estimation of spin disorder and of coupling strength anisotropy (strong coupling...

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Veröffentlicht in:Journal of magnetism and magnetic materials 2004-05, Vol.272, p.158-159
Hauptverfasser: Brison, J.P, Luchier, N, Sulpice, A, Suderow, H, Martinez-Samper, P, Vieira, S, Buzdin, A.I, Canfield, P.C
Format: Artikel
Sprache:eng
Schlagworte:
Bc2
Borocarbide
Physics
TmNi 2B 2C
Tunnelling spectroscopy
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Zusammenfassung:We present microscopic measurements indicating that the superconducting gap of borocarbide superconductors is strongly anisotropic. They are compared to macroscopic B c2 measurements on TmNi 2B 2C, which allow a direct estimation of spin disorder and of coupling strength anisotropy (strong coupling two-band model).
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2003.12.1380