Quantum collective creep

We study the phenomenon of quantum creep in bulk superconductors within the framework of weak-collective-pinning theory. Single-vortex pinning at moderate magnetic fields as well as creep of vortex bundles at high fields are discussed for the case of current densities near critical. In the limit of...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 1991-06, Vol.66 (25), p.3297-3300
Main Authors: BLATTER, G, GESHKENBEIN, V. B, VINOKUR, V. M
Format: Article
Language:English
Subjects:
656100 - Condensed Matter Physics- Superconductivity
COLLECTIVE EXCITATIONS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Condensed matter: electronic structure, electrical, magnetic, and optical properties
ENERGY-LEVEL TRANSITIONS
Exact sciences and technology
EXCITATION
FUNCTIONS
LAGRANGIAN FUNCTION
MAGNETIC FLUX
Physics
Properties of type I and type II superconductors
Superconductivity
SUPERCONDUCTORS
TUNNEL EFFECT
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study the phenomenon of quantum creep in bulk superconductors within the framework of weak-collective-pinning theory. Single-vortex pinning at moderate magnetic fields as well as creep of vortex bundles at high fields are discussed for the case of current densities near critical. In the limit of strong dissipation and for moderate fields the basic parameter determining the tunneling rate is the ratio {rho}{sub {ital n}}/{xi} ({rho}{sub {ital n}}=normal-state resistivity, {xi}=coherent length), with strong tunneling realized for {rho}{sub {ital h}}/{xi}{approx gt}1 k{Omega}.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.66.3297