Quantum Phase Slips and Transport in Ultrathin Superconducting Wires
Journal Article
·
· Physical Review Letters
- Institut fuer Theoretische Festkoerperphysik, Universitaet Karlsruhe, 76128 Karlsruhe (Germany)
- I.E. Tamm Department of Theoretical Physics, P.N. Lebedev Physics Institute, Leninskii pr.53, 117924 Moscow (Russia)
- Theoretische Physik, ETH-Hoenggerberg, CH-8093 Zuerich (Switzerland)
- Physics Department, University of California, Davis, California 95616 (United States)
We present a microscopic study of the quantum fluctuations of the superconducting order parameter in thin homogeneous superconducting wires at all temperatures below T{sub c}. The rate of quantum phase-slip processes determines the resistance R(T) of the wire, which is observable in very thin wires, even at low temperatures. Furthermore, we predict a new low-temperature metallic phase below a critical wire thickness in the 10-nm range, in which quantum phase slips proliferate. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 467437
- Journal Information:
- Physical Review Letters, Vol. 78, Issue 8; Other Information: PBD: Feb 1997
- Country of Publication:
- United States
- Language:
- English
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