J. Phys. Colloques
Volume 49, Number C8, Décembre 1988Proceedings of the International Conference on Magnetism
|Page(s)||C8-2105 - C8-2106|
J. Phys. Colloques 49 (1988) C8-2105-C8-2106
CRITICAL BEHAVIOR OF THE FIELD-DEPENDENT SPECIFIC HEAT OF A YBa2Cu3O7-x SINGLE CRYSTALM. B. Salamon, S. E. Inderhees, J. P. Rice, B. G. Pazol et D. M. Ginsberg
Department of Physics and Materials Research Laboratory University of Illinois, Urbana, IL 61801, U.S.A.
The heat capacity anomaly of YBa2Cu3O7-x at Tc is reduced in amplitude and broadened upon application of a magnetic field along the c-axis. However, the shift, as measured by the point of maximum increase with decreasing temperature, is much smaller than expected from estimates of the upper critical field. The possibility of critical behavior is discussed.