THERMAL-EXPANSION AND THE GRUNEISEN-PARAMETER NEAR THE MAGNETIC INSTABILITY IN CE1-XLAXRU2SI2

Authors
KAMBE S FLOUQUET J LEJAY P HAEN P DEVISSER A
Citation
S. Kambe et al., THERMAL-EXPANSION AND THE GRUNEISEN-PARAMETER NEAR THE MAGNETIC INSTABILITY IN CE1-XLAXRU2SI2, Journal of physics. Condensed matter, 9(23), 1997, pp. 4917-4924
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
9
Issue
23
Year of publication
1997
Pages
4917 - 4924
Database
ISI
SICI code
0953-8984(1997)9:23<4917:TATGNT>2.0.ZU;2-A
Abstract
The low-temperature thermal expansion of the heavy-fermion system with the formula Ce1-xLaxRu2Si2 (x = 0 and x = 0.05) close to the magnetic instability is analysed in terms of the renormalization group and sel f-consistent renormalized spin-fluctuation models. The Gruneisen param eter calculated using the renormalized Fermi temperature is compared w ith the effective one which is determined from thermal expansion measu rements and previously obtained specific heat data.