Vortex-state resistance near parallel orientation in layered superconductors
M. Chaparala, O. H. Chung, Z. F. Ren, M. White, P. Coppens, J. H. Wang, A. P. Hope, M. J. Naughton
DOI 10.1103/PhysRevB.53.5818 · Physical Review B
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Abstract
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 Tl2Ba2CaCu2O8, TlBa2Ca2Cu3O10, Bi2Sr2CaCu2O8, and (BEDT-TTF)2Cu(NCS)2, and so appears to be a general phenomenon of layered superconductors. Attendant with this peak is a local 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. © 1996 The American Physical Society.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Tl2Ba2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 105 | Pressure not reported | unknown |
| TlBa2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 116 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 83 | Pressure not reported | unknown |
| (BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10.3 | Pressure not reported | unknown |
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