Self-heating versus quantum creep in bulk superconductors
A. Gerber, J. J. M. Franse
DOI 10.1103/PhysRevLett.71.1895 · Physical Review Letters
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Abstract
We have performed simultaneous measurements of magnetic relaxation and the accompanying power dissipation in a number of BiSrCaCuO crystals at temperatures between 0.5 and 4.2 K. The nonvanishing relaxation rate in bulk superconductors at low temperatures, recently discussed as evidence of a quantum tunneling of vortices, is argued to be governed by self-heating of the superconductor by moving vortices.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| BiSrCaCuO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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