Evidence of gap anisotropy in superconducting YNi2B2C using directional point contact spectroscopy

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We present a study of the anisotropy in the superconducting energy gap in a single crystal of YNi2B2C (Tc~14.6K) using directional point contact spectroscopy. The superconducting energy gap at 2.7K, when measured for I||c, is 4.5 times larger than that for I||a. The energy gaps in the two directions also have different temperature dependences. Our results support a scenario with s+g like symmetry.
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Superconductivity, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/23737

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0404322
 http://arxiv.org/abs/cond-mat/0404322
 Phys. Rev. Lett. 93, 156802 (2004)
 doi:10.1103/PhysRevLett.93.156802

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arXiv