The DX centre
T.N. Morgan
Semiconductor Science and Technology
We find that, for ceramic samples of YBa2Cu3Ox, the microwave absorption in a dc magnetic field H and at a temperature T is different for field cooling than for zero field cooling, provided T is below a field-dependent irreversibility temperature. Since the microwaves probe only a layer at the surface of the sample, the irreversibility line in H-T space determined in this way is a property of the surface layer with a thickness given by the microwave skin depth. When the applied H is removed, we observe a remanent microwave absorption which decays logarithmically with time. © 1989 The American Physical Society.
T.N. Morgan
Semiconductor Science and Technology
A. Reisman, M. Berkenblit, et al.
JES
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
R. Ghez, J.S. Lew
Journal of Crystal Growth