Creep of superconducting vortices in the limit of vanishing temperature: A fingerprint of off-equilibrium dynamics

被引:36
作者
Nicodemi, M
Jensen, HJ
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Math, London SW7 2BZ, England
[2] Univ Naples Federico II, Dipartimento Sci Fis, INFM, I-80126 Naples, Italy
[3] Ist Nazl Fis Nucl, I-80126 Naples, Italy
关键词
D O I
10.1103/PhysRevLett.86.4378
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We theoretically study the creep of vortex matter in superconductors. The low temperature experimental phenomenology, previously interpreted in terms of "quantum tunneling" of vortices, is reproduced by Monte Carlo simulations of a purely "classical" vortex model. We demonstrate that a nonzero creep rate in the limit of vanishing temperature is to be expected in systems with slow relaxations as a consequence of their off-equilibrium evolution in a complex free energy landscape.
引用
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页码:4378 / 4381
页数:4
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