Change of the Fermi Surface across the Critical Pressure in CeIn3: The de Haas–van Alphen Study under Pressure

Autor:	Tatsuma D. Matsuda, Kiyoshi Betsuyaku, Yoshichika Onuki, Tomoyuki Shiromoto, Tetsuo Kubo, Rikio Settai, Tatsuo C. Kobayashi, Yoshinori Haga, Daisuke Honda, Hiroaki Shishido, Hisatomo Harima, Kiyohiro Sugiyama
Rok vydání:	2005
Předmět:	Physics Magnetization symbols.namesake Effective mass (solid-state physics) Condensed matter physics Fermi level symbols General Physics and Astronomy Antiferromagnetism Fermi surface De Haas–van Alphen effect Néel temperature Magnetic susceptibility
Zdroj:	Journal of the Physical Society of Japan. 74:3016-3026
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.74.3016
Popis:	We have studied a change of the Fermi surface in an antiferromagnet CeIn 3 via the de Haas–van Alphen experiment under pressure up to 3 GPa. With increasing pressure P , the Neel temperature T N =10 K decreases and becomes zero at a critical pressure P c ≃2.6 GPa. In the pressure region P > P c , we have observed a large main Fermi surface named a , which indicates that the electronic state of 4 f electron in CeIn 3 changes from localized to itinerant at P c , as observed in the similar antiferromagnets CeRh 2 Si 2 and CeRhIn 5 . The cyclotron effective mass m c * of this main Fermi surface is extremely enhanced around P c : m c * ≃60 m 0 at 2.7 GPa for the magnetic field along the direction.
Databáze:	OpenAIRE
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