Magnetic and Fermi Surface Properties in NpIn3

Magnetic and Fermi Surface Properties in NpIn3
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NpIn3 的磁性和费米表面特性

DOI:
10.1143/jpsj.75.084710
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发表时间:
2006
影响因子:
1.7
通讯作者:
Y. Ōnuki
Y. Ōnuki
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
D. Aoki;Y. Homma;H. Sakai;S. Ikeda;Y. Shiokawa;E. Yamamoto;A. Nakamura;Y. Haga;R. Settai;Y. Ōnuki

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采用in -flux法成功生长出了高质量的npin3单晶,并对其电阻率、比热、磁化率、磁化强度和dHvA效应进行了测试。铁磁序和反铁磁序分别发生在温度C =14 K和温度N =10 K,同时在温度T * =8 K处发生另一次跃迁。当磁场作用于样品时,反铁磁态最终转变为铁磁态,并伴有两次变磁跃迁。反铁磁有序相变和两个超磁相变均为一级相变。在dHvA实验中,我们观察到三个dHvA分支,回旋加速器质量在3.4 ~ 14 μ m 0之间。从基于LaIn 3的费米曲面的5f局域化模型的角度讨论了这些dHvA分支。
We succeeded in growing a high-quality single crystal of NpIn 3 by the In-flux method, and measured the electrical resistivity, specific heat, magnetic susceptibility, magnetization and de Haas–van Alphen (dHvA) effect. Ferromagnetic and antiferromagnetic orderings occur at T C =14 K and T N =10 K, respectively, together with another transition at T * =8 K. When the magnetic field is applied to the sample, the antiferromagnetic state is finally changed into a ferromagnetic state with two metamagnetic transitions. The antiferromagnetic ordering and two metamagnetic transitions are found to be of the first-order phase transition. In the dHvA experiments, we observed three dHvA branches with the cyclotron mass ranging from 3.4 to 14 m 0 . These dHvA branches are discussed from a viewpoint of the 5 f -localized model based on the Fermi surface of LaIn 3 .
DOI: --
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