Abstract

The effects of dc transport current on low-field microwave absorption have been investigated systematically on bulk ceramic YBa₂Cu₃O₇-δ samples. At a fixed temperature T, the critical current Ic (T) at which the electron paramagnetic resonance (EPR) signal vanishes varies linearly with T. The EPR absorption characteristics obey a scaling rule in accordance with the flux creep model. A revised version of the flux creep model is also presented.

Notes

Originally published in Journal of Applied Physics 67, 3088 (1990). DOI:10.1063/1.345383 (http://dx.doi.org/10.1063/1.345383).

Keywords

dc transport, direct current, low field microwave absorption, flux creep model, YBCO, YBa₂Cu₃O₇-δ, critical current, EPR

Subject Categories

Superconductors, Electron paramagnetic resonance

Disciplines

Electromagnetics and photonics

Publisher

American Institute of Physics

Publication Date

2-15-1990

Rights Information

Copyright 1990 American Institute of Physics.

Rights Holder

American Institute of Physics

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