Specific heat ofUPt3in magnetic fields up to 24.5 T

Autor: A. de Visser, D. Althof, H.P. van der Meulen, J.J.M. Franse, Z. Tarnawski, Jos A. A. J. Perenboom, H. van Kempen
Rok vydání: 1990
Předmět:
Zdroj: Physical Review B. 41:9352-9357
ISSN: 1095-3795
0163-1829
DOI: 10.1103/physrevb.41.9352
Popis: We report the first high-precision specific-heat measurements on the heavy-fermion compound ${\mathrm{UPt}}_{3}$, over a wide temperature (1.4 KT40 K) and field range (B24.5 T), thus covering the metamagnetic transition at 20 T. The data, taken on a single-crystalline sample, show a pronounced low-temperature maximum in the enhanced ${\ensuremath{\gamma}}^{\mathrm{*}}$ value at 20 T for a field direction in the hexagonal plane. We also investigate the presence of a ${\mathit{T}}^{3}$ln(T/${\mathit{T}}^{\mathrm{*}}$) contribution to the specific heat in field.
Databáze: OpenAIRE