Surface superconducting states in yttrium hexaboride single crystal in a tilted magnetic field

M. I. Tsindlekht; V. M. Genkin; G. I. Leviev; N. Yu. Shitsevalova

doi:10.1088/0953-8984/22/9/095701

Surface superconducting states in yttrium hexaboride single crystal in a tilted magnetic field

Superconductivity 2015-05-13 v2

Authors: M. I. Tsindlekht , V. M. Genkin , G. I. Leviev , N. Yu. Shitsevalova

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Abstract

We present the results of an experimental study of the nucleation of superconductivity at the surface of a single crystal YB $_6$ in a tilted dc magnetic field. A recently developed experimental technique allowed us to determine $H_{c3}$ at each side of the sample as a function of the angle between the dc magnetic field and the surface. Experiment shows that the ratio $H_{c3}/ H_{c2}\approx 1.28$ in the direction perpendicular to the surface dc field while according to the theory this ratio should be equal to 1. This sharp distinction cannot be ascribed to the surface roughness.

Keywords

surface superconductivity nucleation critical field yttrium hexaboride tilted magnetic field Hc3/Hc2 ratio

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@article{arxiv.0901.2544,
  title  = {Surface superconducting states in yttrium hexaboride single crystal in a tilted magnetic field},
  author = {M. I. Tsindlekht and V. M. Genkin and G. I. Leviev and N. Yu. Shitsevalova},
  journal= {arXiv preprint arXiv:0901.2544},
  year   = {2015}
}

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6 pages, 8 figures

Surface superconducting states in yttrium hexaboride single crystal in a tilted magnetic field

Abstract

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