title: Spatiotemporal vortex matter oscillations in Bi2Sr2CaCu2O8+delta crystals.
abstract: We observed an oscillatory behavior, both in space and time, of the induction in Bi2Sr2CaCu2O8+delta crystals exposed to a steady magnetic field. This new "flux waves" phenomenon appears near the order-disorder vortex phase transition, under specific conditions of temperature and induction gradient. A theoretical description of this effect is based on two coupled equations: the Landau-Khalatnikov dynamic equation for the order parameter of the vortex phase transition and the diffusion equation for the time evolution of the magnetic induction. A linear stability analysis of these equations predicts an oscillatory instability characterized by a period and wavelength in accordance with the experimental results.
authors.affiliation: Institute for Superconductivity, Department of Physics, Bar-Ilan University, Ramat-Gan, Israel. beena.kalisky@weizmann.ac.il
authors.forename: B
authors.initials: B
authors.lastname: Kalisky
authors.forename: M
authors.initials: M
authors.lastname: Gitterman
authors.forename: B Ya
authors.initials: BY
authors.lastname: Shapiro
authors.forename: I
authors.initials: I
authors.lastname: Shapiro
authors.forename: A
authors.initials: A
authors.lastname: Shaulov
authors.forename: T
authors.initials: T
authors.lastname: Tamegai
authors.forename: Y
authors.initials: Y
authors.lastname: Yeshurun