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Four-fold basal plane anisotropy of the nonlocal magnetization of YNi2B2C

L. Civale·A. V. Silhanek·J. R. Thompson·K. J. Song·C. V. Tomy·D. McK. Paul
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Abstract

Studies of single crystal YNi2B2C have revealed a four-fold anisotropy of the equilibrium magnetization in the square crystallographic basal plane. This pi/2 periodicity occurs deep in the superconductive mixed state. In this crystal symmetry, an ordinary superconductive mass anisotropy (as in usual London theory) allows only a constant, isotropic response. In contrast, the experimental results are well described by generalized London theory incorporating non-local electrodynamics, as needed for this clean, intermediate-k superconductor.

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L. Civale, A. V. Silhanek, J. R. Thompson, K. J. Song, C. V. Tomy, D. McK. Paul. 1999-08-31. Four-fold basal plane anisotropy of the nonlocal magnetization of YNi2B2C. https://doi.org/10.1103/physrevlett.83.3920

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