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2009 | 115 | 1 | 47-52
Article title

Pressure Effect on Yb-Based Strongly Correlated Electron Systems

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EN
Abstracts
EN
We studied pressure effects on YbCu_5 and YbInCu_4, good examples of the Yb-based compounds to investigate the nonmagnetic-magnetic transition in Yb-based strongly correlated electron systems. With increasing pressure, the low-temperature Fermi liquid state of YbCu_5 is gradually suppressed, suggesting the second-order like nonmagnetic-magnetic transition around the pressure of 5-6 GPa. On the other hand, in YbInCu_4 which has a pressure-induced magnetic ordered ground state above P_C=2.45 GPa, both high-temperature paramagnetic and low-temperature intermediate valence phases are insensitive to pressure. Our results confirm the first-order nature of the transition between the intermediate valence and magnetic ordered phases with pressure.
Keywords
Contributors
author
  • Graduate School of Sciences, Kobe University, Nada, Kobe 657-8501, Japan
author
  • Graduate School of Sciences, Kobe University, Nada, Kobe 657-8501, Japan
author
  • Graduate School of Sciences, Kobe University, Nada, Kobe 657-8501, Japan
author
  • Graduate School of Sciences, Kobe University, Nada, Kobe 657-8501, Japan
author
  • Graduate School of Sciences, Kobe University, Nada, Kobe 657-8501, Japan
author
  • Graduate School of Sciences, Okayama University, Okayama 700-8530, Japan
author
  • Graduate School of Sciences, Okayama University, Okayama 700-8530, Japan
author
  • Institute of Molecular Physics, Polish Academy of Sciences, 60-179 Poznań, Poland
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, 043-53 Kosice, Slovakia
author
  • Los Alamos National Laboratory, Mail Stop K764, Los Alamos, New Mexico 87545, USA
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n1007kz
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