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

C. Capan·A. Bianchi·F. Ronning·A. Lacerda·J. D. Thompson·P. G. Pagliuso·J. L. Sarrao·R. Movshovich
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Abstract

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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C. Capan, A. Bianchi, F. Ronning, A. Lacerda, J. D. Thompson, P. G. Pagliuso, J. L. Sarrao, R. Movshovich. 2004-04-14. Non-Fermi Liquid behavior in CeIrIn$_5$ near a metamagnetic transition. https://doi.org/10.1103/physrevb.70.180502

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