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Author (up) Sereni, J.G. doi  openurl
  Title Crossover from classical to quantum regime in Ce-lattice systems Type Journal Article
  Year 2007 Publication Physica B: Condensed Matter Abbreviated Journal Physica B  
  Volume 398 Issue 2 Pages 412-415  
  Keywords  
  Abstract Different types of magnetic phase diagrams are analyzed with the scope to detect signs of a crossover between the classical (thermal fluctuations) regime and the critical (quantum fluctuations) one. In systems where T-N,T-C is driven down to the mK range by alloying Ce-ligands (x), clear changes in the magnetic phase are observed once T-N,T-C < 2K. On the contrary, when T-N vanishes at finite temperature (driven by pressure or x) the phase boundaries do not reach temperatures lower than approximate to 3 K. In a third type of phase diagrams, characterized by a weak TN(x,p) dependence, signs of phase separation are suspected. Distinctive properties of each mentioned group are recognized and some exemplary cases analyzed in detail. Those properties coincide indicating a crossover temperature slightly above 2 K. (c) 2007 Elsevier B.V. All rights reserved.  
  Address  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0921-4526 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000249147100058 Approved no  
  Call Number BT @ hernan @ Serial 50  
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