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Author Kang, W. N. ♦ Kim, D. H. ♦ Shim, S. Y. ♦ Park, J. H. ♦ Hahn, T. S. ♦ Choi, S. S. ♦ Lee, W. C. ♦ Hettinger, J. D. ♦ Gray, K. E. ♦ Glagola, B.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ HIGH-TC SUPERCONDUCTORS ♦ MIXED STATE ♦ YTTRIUM OXIDES ♦ BARIUM OXIDES ♦ COPPER OXIDES ♦ HALL EFFECT ♦ MAGNETIC FLUX ♦ TWINNING ♦ PHYSICAL RADIATION EFFECTS ♦ CRYSTAL DEFECTS ♦ SCALING ♦ PINNING
Abstract The mixed-state Hall effect of twinned YBa{sub 2}Cu{sub 3}O{sub 7} crystals after heavy-ion irradiation clearly showed that the strong pinning induced by columnar defects not only modifies the scaling behavior between the Hall resistivity and longitudinal resistivity, but affects the temperature dependence of the Hall conductivity. For the irradiated crystals, the scaling exponent at 4 T was found to be 1.5{plus_minus}0.1 compared to 2.0{plus_minus}0.2 for the unirradiated one. The temperature dependence of the Hall conductivity of the irradiated crystals exhibited a clear deviation from that of the unirradiated one at low temperatures. {copyright} {ital 1996 The American Physical Society.}
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-04-01
Publisher Place United States
Journal Physical Review Letters
Volume Number 76
Issue Number 16


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