A. A. Kordyuk, V. V. Nemoshkalenko, R. V. Viznichenko, W. Gawalek

Physica C 310 (no.1-4), 173-176 (1998).

A method of reconstruction of critical current profiles from measurements of a hysteretic AC loss is proposed. As an example, we have applied this approach to study the degradation in the bulk melt-textured HTS sample with a resonance oscillations technique developed earlier for granular HTS samples and now modified to study HTS bulks. The critical current density profile was determined after the degradation in the thin undersurface layer of about 60 mkm.

presented at ICMC'98 in Enschede, The Netherlands, 10-13 May 1998