David B. Mitzi
Journal of Materials Chemistry
We report a small roughly logarithmic increase with frequency of the apparent transition temperature in ac susceptibility experiments on a Y-Ba-Cu-O superconducting crystal. Magnetic field enhances the effect. A flux creep model predicts the correct order of magnitude and implies that the transitions previously used to determine the upper-critical field Hc2 actually represent an "irreversibility" line. © 1988 The American Physical Society.
David B. Mitzi
Journal of Materials Chemistry
K.N. Tu
Materials Science and Engineering: A
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
Sung Ho Kim, Oun-Ho Park, et al.
Small