Evidence of the temperature-dependent interlayer coupling from the anisotropic transport properties in Co-substituted single-crystal Bi{sub 2}Sr{sub 2}Ca(Cu{sub 1{minus}{ital x}}Co{sub {ital x}}){sub 2}O{sub 8+{delta}}
- NTT Basic Research Laboratories, 3-1 Morinosato Wakamiya, Atsugi-Shi, Kanagawa 243-01 (Japan)
We report on the effect of Co impurity substitution on the anisotropic transport properties of Bi{sub 2}Sr{sub 2}Ca(Cu{sub 1{minus}{ital x}}Co{sub {ital x}}){sub 2}O{sub 8+{delta}} single crystals. With Co doping, there is an increase in anisotropy {gamma} estimated from the scaling of the angular dependence of the in-plane resistivity with reduced field as well as in the out-of-plane resistivity. These results can be quantitatively explained by the two-dimensional Lawrence-Doniach model, if we assume that the anisotropy in the superconducting state is determined by the interlayer coupling just above {ital T}{sub {ital c}}. The analysis highlights the specific feature in high-{ital T}{sub {ital c}} cuprates that the effective interlayer coupling depends on temperature. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 383204
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 54, Issue 10; Other Information: PBD: Sep 1996
- Country of Publication:
- United States
- Language:
- English
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