The Role of Nonlocality in the Pinning Properties of Borocarbides Materials

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dc.creatorSilhanek, A. V.
dc.creatorThompson, J. R.
dc.creatorCivale, L.
dc.creatorBud'ko, S. L.
dc.creatorCanfield, P.
dc.date2003-10-08
dc.date2003-10-09
dc.date.accessioned2026-07-07T02:54:04Z
dc.date.available2026-07-07T02:54:04Z
dc.descriptionAn experimental review on the influence of nonlocal electrodynamics in the vortex pinning properties of non-magnetic borocarbide superconductors is presented. We show that the pinning force density Fp exhibits a rich and complex anisotropic behavior that sharply contrast with the small mass anisotropy of these compounds. For magnetic fields H applied parallel to the crystallographic c-axis, the first order reorientation transition between two rhombic lattices manifests itself as a kink in Fp(H). For H perpendicular to the c-axis, a much larger Fp(H) and a slower relaxation rate is observed. In this field configuration, nonlocality induces a fourfold periodicity in Fp when H is rotated within the square basal plane. Unlike the out-of-plane anisotropy, which persists for increasing impurity levels, the in-plane fourfold anisotropy can be strongly suppressed by reducing the electronic mean free path. This result unambiguously demonstrate that the in-plane anisotropy is a consequence of nonlocal effects.
dc.description19 pages, 9 figures, to be published in Horizons in Superconductivity Research, edited by Frank Colombus, Nova Science Publishers, New York (2003)
dc.identifierhttps://arxiv.org/abs/cond-mat/0310188
dc.identifierhttp://arxiv.org/abs/cond-mat/0310188
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22400
dc.subjectSuperconductivity
dc.titleThe Role of Nonlocality in the Pinning Properties of Borocarbides Materials
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