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Non-Fermi Liquid behavior in CeIrIn$_5$ near a metamagnetic transition

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arxiv cond-mat/0404333 v1 pith:5W5RJ4FV submitted 2004-04-14 cond-mat.str-el cond-mat.mtrl-sci

C.Capan , A. Bianchi , F. Ronning , A. Lacerda , J. D. Thompson , P. G. Pagliuso , J. L. Sarrao , R. Movshovich This is my paper · ORCID
classification cond-mat.str-elcond-mat.mtrl-sci
keywords behaviormetamagneticaboveceirin5fieldfieldsliquidmagnetic
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We present specific heat and resistivity study of CeIrIn5 in magnetic fields up to 17 T and temperature down to 50 mK. Both quantities were measured with the magnetic field parallel to the c-axis (H || [001]) and within the a-b plane (H \perp [001]). Non-Fermi-liquid (NFL) behavior develops above 12 T for H || [001]. The Fermi liquid state is much more robust for H \perp [001] and is suppressed only moderately at the highest applied field. Based on the observed trends and the proximity to a metamagnetic phase transition, which exists at fields above 25 T for H || [001], we suggest that the observed NFL behavior in CeIrIn5 is a consequence of a metamagnetic quantum critical point.

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