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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  
  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.  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  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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