Magnetic relaxation and the lower critical fields in a y-ba-cu-o crystal

Y. Yeshurun; A. P. Malozemoff; F. Holtzberg; T. R. Dinger

doi:10.1103/physrevb.38.11828

Magnetic relaxation and the lower critical fields in a y-ba-cu-o crystal

Y. Yeshurun, A. P. Malozemoff, F. Holtzberg, T. R. Dinger

Institute of Superconductivity Laboratory for Magnetic Measurements

IBM

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Abstract

We report a low-temperature study of magnetic relaxation for fields 30 OeH30 kOe applied along the principal axes of a Y-Ba-Cu-O crystal. The lower critical fields are identified by the onset of relaxation at 900 100 Oe and 250 50 Oe for H c and H c, respectively. The field dependence of the relaxation rates above the critical fields is interpreted with a thermally activated flux creep model.

Original language	English
Pages (from-to)	11828-11831
Number of pages	4
Journal	Physical Review B
Volume	38
Issue number	16
DOIs	https://doi.org/10.1103/physrevb.38.11828
State	Published - 1988

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abstract = "We report a low-temperature study of magnetic relaxation for fields 30 OeH30 kOe applied along the principal axes of a Y-Ba-Cu-O crystal. The lower critical fields are identified by the onset of relaxation at 900 100 Oe and 250 50 Oe for H c and H c, respectively. The field dependence of the relaxation rates above the critical fields is interpreted with a thermally activated flux creep model.",

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AB - We report a low-temperature study of magnetic relaxation for fields 30 OeH30 kOe applied along the principal axes of a Y-Ba-Cu-O crystal. The lower critical fields are identified by the onset of relaxation at 900 100 Oe and 250 50 Oe for H c and H c, respectively. The field dependence of the relaxation rates above the critical fields is interpreted with a thermally activated flux creep model.

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Magnetic relaxation and the lower critical fields in a y-ba-cu-o crystal

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