Interlayer Phase Coherence in the Vortex State of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital {delta}}} Probed by Josephson Plasma Resonance

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.1972· OSTI ID:475703

Matsuda, Y; Gaifullin, M B; Kumagai, K; Kosugi, M ^[1]; Gaifullin, M B ^[2]; Kosugi, M ^[3]; Hirata, K ^[4]

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1. Department of Physics, Hokkaido University, Sapporo 060 (Japan)
2. Department of Physics, Far Eastern State Technical University, Vladivostok 690600 (Russia)
3. Department of Physics, Aoyama-Gakuin University, Setagaya, Tokyo 157 (Japan)
4. National Research Institute for Metals, 1-2-1 Sengen, Tsukuba, Ibaraki 305 (Japan)

Interlayer phase coherence in the vortex state of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} is studied by Josephson plasma resonance over a wide field range. In almost the entire region of the vortex liquid phase, the plasmon frequency is well described by the high temperature expansion theory that assumes almost decoupled layers. The plasmon frequency changes drastically below the melting transition line at low field. The rapid decrease of the interlayer coherence with decreasing T below the irreversibility line reported previously is shown to be due to the unusual critical state of this material. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 475703
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
JOSEPHSON EFFECT
MAGNETIC FLUX
MICROWAVE RADIATION
PLASMONS
RESONANCE
STRONTIUM OXIDES
VORTICES