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arXiv · 0901.2544

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
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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.

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M. I. Tsindlekht, V. M. Genkin, G. I. Leviev, N. Yu. Shitsevalova. 2009-05-30. Surface superconducting states in yttrium hexaboride single crystal in a tilted magnetic field. https://doi.org/10.1088/0953-8984%2F22%2F9%2F095701

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