Vortex-state resistance near parallel orientation in layered superconductors
- National High Magnetic Field Laboratory, Tallahassee, Florida 32306 (United States)
- Department of Physics, Sunchon National University, Sunchon, 540742 (Korea)
- Department of Chemistry, State University of New York, Buffalo, New York 14260 (United States)
- Department of Physics, State University of New York, Buffalo, New York 14260 (United States)
- Departments of Physics and Chemistry, State University of New York, Buffalo, New York 14260 (United States)
Angular studies of in-plane resistivity in the mixed-state of layered superconductors reveal a local maximum for magnetic field oriented parallel to the quasi-two-dimensional layers. The peak is observed in single crystals of Tl{sub 2}Ba{sub 2}CaCu{sub 2}O{sub 8}, TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10}, Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}, and (BEDT-TTF){sub 2}Cu(NCS){sub 2}, and so appears to be a general phenomenon of layered superconductors. Attendant with this peak is a local {ital minimum} in the critical current density at the parallel orientation. Weak interlayer coupling and fluctuations are suggested to provide for the nucleation of noninteracting point vortices with free in-plane motion in the parallel field, yielding excess dissipation. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 279503
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 9 Vol. 53; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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