Vortex Pinning of Anisotropically Splayed Defects inYBa2Cu3O7−δ

Autor:	L. M. Paulius, R. M. Ronningen, A. M. Petrean, G. W. Crabtree, W. K. Kwok, V. M. Vinokur
Rok vydání:	1998
Předmět:	Materials science Condensed matter physics Plane (geometry) Condensed Matter::Superconductivity Perpendicular General Physics and Astronomy Irradiation Crystallographic defect Magnetic flux Energy (signal processing) Ion Vortex
Zdroj:	Physical Review Letters. 80:600-603
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.80.600
Popis:	Pinning by splayed defects created by 3.9GeV {sup 197}Au{sup 29+} ions is studied using transport measurements of vortex motion perpendicular and parallel to the splay plane in untwinned crystals of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} . We compare the transport properties of the crystals and demonstrate (i) a new 1/H dependence of the vortex liquid pinning energy, (ii)a crossing of the irreversibility lines before and after irradiation, and (iii)a stronger temperature dependence of the critical current for vortex motion perpendicular to the splay plane than for motion parallel to the splay plane. {copyright} {ital 1998} {ital The American Physical Society}
Databáze:	OpenAIRE
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