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Author (up) Kuchler, R.; Gegenwart, P.; Custers, J.; Stockert, O.; Caroca-Canales, N.; Geibel, C.; Sereni, J.G.; Steglich, F. doi  openurl
  Title Quantum criticality in the cubic heavy-fermion system CeIn3-xSnx Type Journal Article
  Year 2006 Publication Physical Review Letters Abbreviated Journal Phys. Rev. Lett.  
  Volume 96 Issue 25 Pages 256403  
  Keywords  
  Abstract We report a comprehensive study of CeIn3-xSnx (0.55 <= x <= 0.8) single crystals close to the antiferromagnetic quantum-critical point (QCP) at x(c)approximate to 0.67 by means of the low-temperature thermal expansion and Gruneisen parameter. This system represents the first example for a cubic heavy fermion in which T-N can be suppressed continuously down to T=0. A characteristic sign change of the Gruneisen parameter between the antiferromagnetic and paramagnetic states indicates the accumulation of entropy close to the QCP. The observed quantum-critical behavior is compatible with the predictions of the itinerant theory for three-dimensional critical spin fluctuations. This has important implications for the role of the dimensionality in heavy-fermion QCPs.  
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  ISSN 0031-9007 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000238697000041 Approved no  
  Call Number BT @ hernan @ Serial 55  
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