Probing vortex kinetics in high-Tc Y(Dy)Ba2Cu3O7 thin films with noise

Edmund R. Nowak; N. E. Israeloff; V. S. Achutharaman; A. M. Goldman

doi:10.1016/0921-4526(94)91651-9

Probing vortex kinetics in high-T_c Y(Dy)Ba₂Cu₃O₇ thin films with noise

Edmund R. Nowak, N. E. Israeloff, V. S. Achutharaman, A. M. Goldman

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

Abstract

Voltage noise has been measured with DC currents at temperatures near T_c in c-axis oriented DyBaCuO thin films. Two regimes of noise are observed as a function of magnetic field. For H<5kG, there are reproducible, microstructure-dependent "fingerprints" of variations of noise with field. These can be interpreted as collective vortex rearrangements between quasi-equilibrium configurations within the pinning potential produced by the granularity of the films.

Original language	English (US)
Pages (from-to)	2303-2304
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	194-196
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4526(94)91651-9
State	Published - Feb 2 1994

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title = "Probing vortex kinetics in high-Tc Y(Dy)Ba2Cu3O7 thin films with noise",

abstract = "Voltage noise has been measured with DC currents at temperatures near Tc in c-axis oriented DyBaCuO thin films. Two regimes of noise are observed as a function of magnetic field. For H<5kG, there are reproducible, microstructure-dependent {"}fingerprints{"} of variations of noise with field. These can be interpreted as collective vortex rearrangements between quasi-equilibrium configurations within the pinning potential produced by the granularity of the films.",

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AU - Nowak, Edmund R.

AU - Israeloff, N. E.

AU - Achutharaman, V. S.

AU - Goldman, A. M.

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AB - Voltage noise has been measured with DC currents at temperatures near Tc in c-axis oriented DyBaCuO thin films. Two regimes of noise are observed as a function of magnetic field. For H<5kG, there are reproducible, microstructure-dependent "fingerprints" of variations of noise with field. These can be interpreted as collective vortex rearrangements between quasi-equilibrium configurations within the pinning potential produced by the granularity of the films.

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