Butsuri
Online ISSN : 2423-8872
Print ISSN : 0029-0181
ISSN-L : 0029-0181
Mottled Electronic State Near a Quantum Critical Phase Transition(Research)
Shinsaku KambeHironori SakaiYo Tokunaga
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JOURNALS OPEN ACCESS

2016 Volume 71 Issue 1 Pages 22-26

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Abstract

By means of nuclear magnetic resonance (NMR) spin-lattice relaxation time measurements on a single crystal YbRh_2Si_2 sample, it is revealed that the coexisting Fermi and non-Fermi states appears near the quantum critical phase transition. Such a mottled state has remained hidden in Ce and U heavy fermion compounds, owing presumably to short lifetimes for the two states. Valence and magnetic instabilities are considered to occur at the same time around the quantum critical phase transition.

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© 2016 The Physical Society of Japan
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