Vortex Flow and Transverse Flux Screening at the Bose Glass Transition

Journal Article · Mon May 22 00:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.4974· OSTI ID:20216606

Smith, A W ^[1]; Jaeger, H M ^[1]; Rosenbaum, T F ^[1]; Petrean, A M ^[2]; Kwok, W K ^[2]; Crabtree, G W ^[2]

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1. The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637 (United States)
2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

We study the vortex phase diagram in untwinned YBCO crystals with columnar defects. These randomly distributed defects are expected to induce a ''Bose glass'' phase of localized vortices exhibiting a vanishing resistance and Meissner effect for magnetic fields H{sub (perpendicular} {sub sign)} transverse to the columns. We directly observe the transverse Meissner effect using a Hall probe array. As predicted, the Meissner state breaks down at temperatures T{sub s} that decrease linearly as H{sub (perpendicular} {sub sign)} increases. However, T{sub s} lies far below the conventional melting temperature T{sub m} determined by a vanishing resistivity, suggesting a regime where vortices are effectively localized even when rotated off the columnar defects. (c) 2000 The American Physical Society.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• OSTI ID: 20216606
• Journal Information: Physical Review Letters, Vol. 84, Issue 21; Other Information: PBD: 22 May 2000; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
PHASE DIAGRAMS
VORTICES
RADIATION EFFECTS
HEAVY IONS
CRYSTAL DEFECTS
MEISSNER-OCHSENFELD EFFECT
EXPERIMENTAL DATA