期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 74, 期 11, 页码 3016-3026出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.74.3016
关键词
CeIn3; de Haas-van Alphen effect; Fermi surface; heavy fermion; pressure
资金
- Grants-in-Aid for Scientific Research [14540337] Funding Source: KAKEN
We have studied a change of the Fermi surface in an antiferromagnet CeIn3 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 similar or equal to 2.6 GPa. In the pressure region P > P,, we have observed a large main Fermi surface named a, which indicates that the electronic state of 4f electron in CeIn3 changes from localized to itinerant at P-c, as observed in the similar antiferromagnets CeRh2Si2 and CeRhIn5. The cyclotron effective mass m(c)(*) of this main Fermi surface is extremely enhanced around P-c: m(c)(*) similar or equal to 60m(0) at 2.7 GPa for the magnetic field along the (100) direction.
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