Glassy behavior of vortex liquid in high-T{sub c} superconducting thin films

Journal Article · Sun Aug 01 00:00:00 EDT 1999 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.60.3088· OSTI ID:357298

Kang, B W; Wu, J Z; Gapud, A A; Kang, W N ^[1]; Christen, D K; Kerchner, R ^[2]

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1. Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045-2151 (United States)
2. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6061 (United States)

In the presence of pinning, two vortex-liquid regions were identified: a glassy liquid (GL), where vortices remain coupled in the {ital ab} plane as manifested by non-Ohmic resistivity, and a regular liquid (RL), where resistivity becomes Ohmic as vortices become decoupled. The field dependence of the Hall angle is linear in the RL and nonlinear in the GL. Since the boundary (H{sub k}-T) between the GL and RL shifts to higher temperatures and magnetic fields as pinning increases, vortices may be decoupled and depinned simultaneously when the H{sub k}-T line merges into the vortex depinning line. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 357298
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 5 Vol. 60; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMORPHOUS STATE
BARIUM OXIDES
CALCIUM OXIDES
COPPER OXIDES
ELECTRIC CONDUCTIVITY
GLASS
HALL EFFECT
HIGH-TC SUPERCONDUCTORS
MAGNETIC FLUX
MERCURY OXIDES
PEROVSKITES
SUPERCONDUCTING FILMS
THIN FILMS
THULIUM OXIDES
VORTEX FLOW
VORTICES