| Issue |
Europhys. Lett.
Volume 76, Number 6, December 2006
|
|
|---|---|---|
| Page(s) | 1158 - 1164 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10394-y | |
| Published online | 23 November 2006 | |
Oscillating pattern in the vortex matter
Department of Physics, Institute of Superconductivity, Bar-Ilan University Ramat-Gan 52900, Israel
Received:
30
July
2006
Accepted:
24
October
2006
We present a theory for the oscillating instability of the vortex matter
experimentally observed in Bi2Sr2CaCu2O
crystals. The
basic framework is a flux dynamics instability in the vicinity of the
coexistence line of the order-disorder vortex phase transition. A
theoretical description of this effect is based on two coupled equations:
the Landau-Ginzburg equation for the order parameter of the vortex phase
transition and the diffusion equation for the magnetic induction. Linear
stability analysis of these equations reveals an oscillatory instability
giving rise to waves and characterized by a period and wavelength that are
in accordance with the experimental results.
PACS: 74.25.Qt – Vortex lattices, flux pinning, flux creep / 74.62.Dh – Effects of crystal defects, doping and substitution / 76.60.Es – Relaxation effects
© EDP Sciences, 2006
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