Reentrant c-axis magnetoresistance in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} with columnar defects: Evidence for recoupling of the vortex liquid
- Los Alamos National Laboratory, MS-K763, Los Alamos, New Mexico 87545 (United States)
We present c-axis magnetoresistance and I-V measurements in longitudinal magnetic field in single crystals of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} irradiated with heavy ions that display distinct anomalies near fractional filling of the columnar defects created by the irradiation. The anomalous behavior extends over a limited range of temperature and, in many crystals, is manifested by a minimum in {rho}{sub c}(H). The region of temperature-field where these anomalies appear coincides with that where two Josephson-plasma resonance lines have been recently observed. Our measurements directly show that a reduced pancake and phase slip mobility is associated with columnar defect filling in the vortex liquid state. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 599146
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 14 Vol. 57; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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