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Author (up) Bauer, E.; Hauser, R.; Keller, L.; Fischer, P.; Trovarelli, O.; Sereni, J.G.; Rieger, J.J.; Stewart, G.R. url  doi
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  Title Onset of magnetic order in YbCu5-xAlx Type Journal Article
  Year 1997 Publication Physical Review B Abbreviated Journal Phys. Rev. B  
  Volume 56 Issue 2 Pages 711-718  
  Keywords  
  Abstract Spectroscopic, magnetic, thermal, and transport measurements under pressure are presented which were performed on YbCu5-xAlx intermetallics. The substitution of Cu by Al in YbCu5 drives the system from an almost divalent behavior of the Yb ion in YbCu5 to a trivalent state in YbCu3Al2. A compensation between the normal thermal expansion and a valence-driven contraction was found for YbCu4Al. Antiferromagnetic order sets in for x>1.5, where an increasing Al content causes both a growing transition temperature and rising saturation moments reaching 2 K and about 2.1 mu(B), respectively, for x=2. At the critical concentration (x approximate to 1.5) the possibility of a non-Fermi-liquid state is analyzed together with its tuning by pressure.  
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  Series Volume Series Issue Edition  
  ISSN 0163-1829 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:A1997XL82700035 Approved no  
  Call Number BT @ hernan @ Serial 91  
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