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Local Electrodynamics in Heavy Ion IrradiatedBi2Sr2CaCu2
Author(s) -
R. A. Doyle,
W. S. Seow,
Y. Yan,
A.M. Campbell,
T. Mochiku,
K. Kadowaki,
G. Wirth
Publication year - 1996
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.77.1155
Subject(s) - physics , anisotropy , heavy ion , ion , transformer , electrical resistivity and conductivity , condensed matter physics , atomic physics , optics , voltage , quantum mechanics
Transport measurements in the flux transformer and c-axis geometries are used to investigate vortex dynamics in heavy ion irradiated BSCCO crystals. In the flux transformer geometry there is a range of fields, temperatures, and angles where the primary and secondary voltages show close correspondence, as observed in YBCO. This occurs because the columnar defects suppress thermal fluctuations and decrease ρc. Values for ρab and ρc are extracted from the flux transformer data assuming local anisotropic electrodynamics and compared with directly measured c-axis data. Good agreement confirms the validity of local resistivity. This is supported by both measurement configurations indicating that ρc vanishes faster than ρab

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