We theoretically study the creep of vortex matter in superconductors. The low temperature experimen- tal 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.
Creep of superconducting vortices in the limit of vanishing temperature: A fingerprint of off-equilibrium dynamics / Nicodemi, Mario; H. J., Jensen. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 86:(2001), pp. 4378-4381.
Creep of superconducting vortices in the limit of vanishing temperature: A fingerprint of off-equilibrium dynamics
NICODEMI, MARIO;
2001
Abstract
We theoretically study the creep of vortex matter in superconductors. The low temperature experimen- tal 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
