ULTRASOUND PROPAGATION IN THE HEAVY-FERMION SUPERCONDUCTORS URU2SI2 AND CECU2SI2

Authors
WOLF B THALMEIER P BRULS G SIXL W FINSTERBUSCH D LUTHI B
Citation
B. Wolf et al., ULTRASOUND PROPAGATION IN THE HEAVY-FERMION SUPERCONDUCTORS URU2SI2 AND CECU2SI2, Physica. B, Condensed matter, 199, 1994, pp. 167-169
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
199
Year of publication
1994
Pages
167 - 169
Database
ISI
SICI code
0921-4526(1994)199:<167:UPITHS>2.0.ZU;2-L
Abstract
The tetragonal heavy-fermion systems URu2Si2 and CeCu2Si2 are both wel l-established superconductors, We describe the elastic anomalies of UR u2Si2 and CeCu2Si2 in the normal and superconducting states with the G runeisen parameter coupling. In particular, the temperature dependence of the c11,-mode of URu2Si2 is interpreted as an isothermal-adiabatic crossover. In CeCu2Si2 we analyse our data in the light of a complex B-T phase diagram.