Spatiotemporal vortex matter oscillations in Bi2Sr2CaCu2O8+δ crystals

B. Kalisky, M. Gitterman, B. Ya Shapiro, I. Shapiro, A. Shaulov, T. Tamegai, Y. Yeshurun

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We observed an oscillatory behavior, both in space and time, of the induction in Bi2Sr2CaCu2O8+δ 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.

Original languageEnglish
Article number017001
JournalPhysical Review Letters
Issue number1
StatePublished - 2007


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