Magnetic relaxation in the "Bragg-glass" phase in BSCCO

Abstract : Magnetic relaxation in the Bragg-glass phase of overdoped Bi2Sr2CaCu2O8 crystals was investigated using time-resolved magneto-optical visualisation of the flux distribution. This has permitted us to extract the current-voltage characteristic, which can be well described by a power-law, although fits to a stretched exponential E ~ exp(- jc/j)µ with 0.3 < µ < 0.8 are passible at long times in excess of 100 g. © 2000 Elsevier Science B.V All rights reserved.
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Submitted on : Wednesday, August 29, 2012 - 3:21:31 PM
Last modification on : Wednesday, March 27, 2019 - 4:26:01 PM

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C.J. van der Beek, S. Colson, M. Konczykowski, M.V. Indenbom, R.J. Drost, et al.. Magnetic relaxation in the "Bragg-glass" phase in BSCCO. Physica C: Superconductivity and its Applications, Elsevier, 2000, 341-348 (PART 3), pp.1279. ⟨hal-00726289⟩

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