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Type: Artigo de periódico
Title: Non-Fermi-liquid behavior in CeIrIn5 near a metamagnetic transition
Author: Capan, C
Bianchi, A
Ronning, F
Lacerda, A
Thompson, JD
Hundley, MF
Pagliuso, PG
Sarrao, JL
Movshovich, R
Abstract: We present a 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 (Hparallel to[001]) and within the a-b plane (Hperpendicular to[001]). Non-Fermi-liquid (NFL) behavior develops above 12 T for Hparallel to[001]. The Fermi-liquid state is much more robust for Hparallel to[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 Hparallel to[001], we suggest that the observed NFL behavior in CeIrIn5 is a consequence of a metamagnetic quantum critical point.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.70.180502
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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