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Author Cruz, F. de la; Fasano, Y.; Seta, M.D.; Menghini, M.; Pastoriza, H.
Title Plastic and Elastic Symmetry Transformations Induced in the Vortex Lattice of Anisotropic and Layered Superconductors Type Journal Article
Year 2004 Publication (up) Journal of Low Temperature Physics Abbreviated Journal
Volume 135 Issue Pages 99-110
Abstract We make a comparative analysis of the response of the three-dimensional vortex lattice in Bi$2$Sr$2$CaCu$8$ and NbSe$2$ to the presence of square arrays of pinning sites localized at one extremity of the vortex crystals. The absence of the hexagonal to square symmetry transformation and the induction of a distorted hexagonal symmetry in the vortex lattice of NbSe$2$ contrast to the observed symmetry change in Bi$2$Sr$2$CaCu$8$. The dissimilar response in both cases is explained taking into account the vortex structure solidification mechanisms in both materials: The plastic response in the case of the layered material Bi$2$Sr$2$CaCu$8$ is suggested to be a result of the simultaneity of solidification and coupling of bidimensional pancake vortices whereas a viscous solidification is the responsible for the three-dimensional elastic response in NbSe$_2$.
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Call Number BT @ hernan @ delacruz04 Serial 15
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