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Title: Instability in vortex system in HTSC

Abstract

The recent progress in understanding of the vortex system behavior in HTSC gives an evidence for spatial and temporal chaos-vortex glass and vortex diffusion and, on the other hand, an evidence for collective phenomena such as vortex flow. A deterministic temporal chaos -- diffusion -- is responsible for 1/f like noise generation and for irreversibility. These phenomena are well pronounced in frequency dependence of magnetization. They cannot be explained by Anderson-Kim model of the critical state or any extended model. They suggest a novel concept of the critical state in type 2 superconductors which is based on the phase transition in the vortex system dynamics. This phase transition represents a transition between the chaotic and correlated transports. The role of pinning, in this concept, is suppressing the collective state creation.

Authors:
; ;  [1]
  1. Academy of Sciences, Rez (Czech Republic). Inst. of Physics
Publication Date:
OSTI Identifier:
40276
Report Number(s):
CONF-930860-
Journal ID: IEMGAQ; ISSN 0018-9464; TRN: IM9520%%471
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics
Additional Journal Information:
Journal Volume: 30; Journal Issue: 2Pt2; Conference: EMMA `93: 5th European magnetic materials and applications conference, Kosice (Slovakia), 24-27 Aug 1993; Other Information: PBD: Mar 1994
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; HIGH-TC SUPERCONDUCTORS; MAGNETIC FLUX; MATHEMATICAL MODELS; PHASE TRANSFORMATIONS; TRANSITION TEMPERATURE; EXPERIMENTAL DATA

Citation Formats

Janu, Z., Tichy, R., and Plechacek, V. Instability in vortex system in HTSC. United States: N. p., 1994. Web. doi:10.1109/20.312223.
Janu, Z., Tichy, R., & Plechacek, V. Instability in vortex system in HTSC. United States. doi:10.1109/20.312223.
Janu, Z., Tichy, R., and Plechacek, V. Tue . "Instability in vortex system in HTSC". United States. doi:10.1109/20.312223.
@article{osti_40276,
title = {Instability in vortex system in HTSC},
author = {Janu, Z. and Tichy, R. and Plechacek, V.},
abstractNote = {The recent progress in understanding of the vortex system behavior in HTSC gives an evidence for spatial and temporal chaos-vortex glass and vortex diffusion and, on the other hand, an evidence for collective phenomena such as vortex flow. A deterministic temporal chaos -- diffusion -- is responsible for 1/f like noise generation and for irreversibility. These phenomena are well pronounced in frequency dependence of magnetization. They cannot be explained by Anderson-Kim model of the critical state or any extended model. They suggest a novel concept of the critical state in type 2 superconductors which is based on the phase transition in the vortex system dynamics. This phase transition represents a transition between the chaotic and correlated transports. The role of pinning, in this concept, is suppressing the collective state creation.},
doi = {10.1109/20.312223},
journal = {IEEE Transactions on Magnetics},
number = 2Pt2,
volume = 30,
place = {United States},
year = {1994},
month = {3}
}