Collapse and Enhancement of the Heavy Fermion State in CeCu6 under Magnetic Field and Pressure

被引：3

作者：

Hirose, Yusuke ^{[1
]}

Sakaguchi, Jyunya ^{[1
]}

Ohya, Masahiro ^{[1
]}

Matsushita, Masaki ^{[1
]}

Honda, Fuminori ^{[1
]}

Settai, Rikio ^{[1
]}

Onuki, Yoshichika ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2012年 / 81卷

关键词：

CeCu6; metamagnetism; heavy fermion; cyclotron effective mass;

D O I：

10.1143/JPSJS.81SB.SB009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measured the electrical resistivity under magnetic field and pressure and de Haas van Alphen (dHvA) oscillations in CeCu6. The A value in the Fermi liquid relation of the electrical resistivity rho = rho 0 + AT(2) and the cyclotron effective mass are reduced with increasing magnetic fields and pressures. The A value, however, becomes distinct and/or is enhanced at the metamagnetic field, especially, in a characteristic pressure region where the electronic state deviates from the heavy fermion state, for example, at 2.00 GPa.

引用

页数：4

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