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Author (up) Sereni, J.G. openurl 
  Title Peculiar thermal features of Ce-systems around their critical points Type Journal Article
  Year 2007 Publication JOURNAL OF LOW TEMPERATURE PHYSICS Abbreviated Journal  
  Volume 147 Issue 3-4 Pages 179-197  
  Keywords  
  Abstract Some non-predicted thermal behavior observed in various Ce-lattice compounds close to their critical points are presented. From a comparison between phase diagrams driven by doping (x) and pressure, a pre-critical region (x* < x < x(cr)) is identified in the former group. Some systematic behaviors, observed in the specific heat (C-m/T) and the entropy gain, are recognized as characteristic features of that region. Different measured temperature dependencies of C-m/T are compared, detecting that the onset of the non-Fermi-liquid behavior occurs much closer to x* than x(cr). In a detailed analysis of the evolution of the thermal dependence within the pre-critical region, a further change in the T dependence is frequently observed before to reach the critical point. A generalized power law function is proposed to compare different systems, which allows to identify a low temperature C-m/T(T) anomaly that only involves about 0.01 x R ln 2 of entropy.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0022-2291 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000245133000008 Approved no  
  Call Number BT @ hernan @ Serial 52  
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