Volume 87, Number 5, September 2009
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||24 September 2009|
Quantum criticality in layered CeRhInSnx compared with cubic CeInSnx
Max-Planck-Institute for Chemical Physics of Solids - D-01187 Dresden, Germany, EU
2 Los Alamos National Laboratory - Los Alamos, NM 87545, USA
3 I. Physik. Institut, Georg-August-Universität Göttingen - D-37077 Göttingen, Germany, EU
Corresponding author: email@example.com
Accepted: 2 September 2009
We report low-temperature thermal-expansion measurements on single crystals of the layered heavy fermion system CeRhInSnx (0.3 x 0.6) and compare it with a previous study on the related cubic system CeInSnx (Küchler R. et al., Phys. Rev. Lett., 96 (2006) 256403). Both systems display a quantum critical point as proven by a divergent Grüneisen ratio. Most remarkably, the three-dimensional itinerant model explains quantum criticality in both systems, suggesting that the crystalline anisotropy in CeRhInSnx is unimportant. This is ascribed to the effect of weak disorder in these doped systems.
PACS: 71.10.Hf – Non-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systems / 71.27.+a – Strongly correlated electron systems; heavy fermions
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.