Vortex telegraph noise in high magnetic fields

Journal Article · Sat Nov 01 00:00:00 EST 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.R11431· OSTI ID:544968

Shung, E; Rosenbaum, T F; Coppersmith, S N ^[1]; Crabtree, G W; Kwok, 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 cool untwinned single crystals of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} with columnar defects down to liquid-He temperatures and study the development of pinning in the strongly interacting Bose glass with local Hall-probe magnetometry. We are able to resolve discrete fluctuations in the local vortex density resulting from reconfigurations of the vortex assembly between metastable states nearby in energy. By varying the applied magnetic field, and therefore the mean vortex density, we gain microscopic information about vortex-vortex interactions. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 544968
• Journal Information: Physical Review, B: Condensed Matter, Vol. 56, Issue 18; Other Information: PBD: Nov 1997
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
YTTRIUM OXIDES
VORTICES
BARIUM OXIDES
COPPER OXIDES
MAGNETIC FLUX
NOISE
CRYSTAL DEFECTS
METASTABLE STATES
MAGNETIC FIELDS
HALL EFFECT
FLUCTUATIONS
DISLOCATION PINNING
SUPERCONDUCTIVITY
HIGH-TC SUPERCONDUCTORS