Journal of the Korean Physical Society

, Volume 63, Issue 3, pp 549–550 | Cite as

Magnetic order induced by Fe doping in the intermediate valence system β-YbAlB4

  • K. KugaEmail author
  • S. Nakatsuji


We have succeeded in doping Fe at the Al site in the intermediate valence and quantum critical material β-YbAlB4 up to 6%. Our measurements of the magnetization and the specific heat for β-YbAl0.94Fe0.06B4 show magnetic ordering at 10 K. The antiferromagnetic Weiss temperature of 88 K, which is smaller than the 110 K for β-YbAlB4, indicates that Fe doping suppresses the Kondo temperature and induces magnetism, driving the system away from the quantum critical point.


Magnetically-ordered materials Valence fluctuation Quantum critical phenomena YbAlB4 


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Copyright information

© The Korean Physical Society 2013

Authors and Affiliations

  1. 1.Institute for Solid State PhysicsUniversity of TokyoKashiwaJapan

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