Field induced quantum critical behavior in CeCoIn investigated by NMR

Sakai, Hironori ; Brown, S. E.*; Baek, S.-H.*; Ronning, F.*; Bauer, E. D.*; Thompson, J. D.*

In heavy fermion superconductor CeCoIn, non-Fermi liquid behavior has been reported to appear above $H_{c2}(0)=50$ kOe along the axis in the low temperature region by means of specific heat, electric resistivity, and thermal expansion measurements. Moreover, the crossover temperature from non-Fermi liquid to Fermi liquid behaviors seems to be extrapolated toward 0 K by lowering magnetic field to $H_{c2}(0)$ in the normal state. The origin of this field-induced critical behavior in the normal state of CeCoIn is investigated microscopically by means of nuclear magnetic resonance (NMR) technique.

Language	:	Japanese
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Meeting title	:	新学術領域研究「重い電子系の形成と秩序化」第3回研究会
Held date	:	2011/06
Location (city)	:	柏
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	第4研究棟
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Registration No. : BB20110516
JAEA Abstracts No. :
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