E. Babich, J. Paraszczak, et al.
Microelectronic Engineering
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.
E. Babich, J. Paraszczak, et al.
Microelectronic Engineering
I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter
O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
Peter J. Price
Surface Science