A change of the Fermi surface across the metamagnetic transition under pressure in UGe2
A change of the Fermi surface across the metamagnetic transition under pressure in UGe2
复制标题
UGe2 压力下变磁转变过程中费米面的变化
DOI：
10.1088/0953-8984/14/5/103
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Y. Ōnuki
中科院分区：
文献类型：
--
作者：
Y. Haga;M. Nakashima;R. Settai;S. Ikeda;T. Okubo;S. Araki;Tatsuo C. Kobayashi;N. Tateiwa;Y. Ōnuki
我们对铁磁体UGe_2在压力下进行了场沿易磁化轴沿着的de Haas-van Alphen（dHvA）和交流磁化率实验。测定了p-H相图，表明存在顺磁性相、弱极化相和强极化相。检测到的dHvA频率以及回旋质量被发现是非常不同的弱和强极化状态之间。随着磁场的增加，费米面的变化发生在弱极化相变为强极化相。
We have performed the de Haas-van Alphen (dHvA) and ac-susceptibility experiments on a ferromagnet UGe2 under pressure for the field along the easy a-axis. The p-H phase diagram was determined, indicating three kinds of phase: paramagnetic and weakly and strongly polarized phases. The detected dHvA frequencies as well as the cyclotron masses are found to be very different between the weakly and strongly polarized states. A change of the Fermi surface occurs when the weakly polarized phase is changed into the strongly polarized phase with increasing magnetic field.
影响因子：
8.6
作者：
T. Terashima;T. Matsumoto;C. Terakura;S. Uji;N. Kimura;M. Endo;T. Komatsubara;H. Aoki
通讯作者：
T. Terashima;T. Matsumoto;C. Terakura;S. Uji;N. Kimura;M. Endo;T. Komatsubara;H. Aoki