Suppression of ferromagnetism of CeTiGe 3 by V substitution
Suppression of ferromagnetism of CeTiGe 3 by V substitution
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DOI：
10.1103/physrevb.88.165123
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发表时间：
2013-10
影响因子：
3.7
通讯作者：
W. Kittler;V. Fritsch;F. Weber;G. Fischer;D. Lamago;G. André;H. Löhneysen
中科院分区：
文献类型：
--
作者：
W. Kittler;V. Fritsch;F. Weber;G. Fischer;D. Lamago;G. André;H. Löhneysen
研究了多晶CeTiVGe（和1）的晶体结构、磁化强度、比热和电阻率。cetige1是一种罕见的具有14 K居里温度的铁磁近藤体系。我们详细研究了该化合物的低温性质，包括磁化、比热和高达5 t的磁场中的电阻率。弹性中子散射实验证实了CeTiGe的铁磁性，并排除了铁磁性。比热分析表明，该体系具有很强的磁各向异性。用V代替Ti降低了，表明可能存在铁磁量子临界点。
The crystallographic structure, magnetization, specific heat, and electrical resistivity of polycrystalline CeTiVGe(and1) have been studied. CeTiGehas been reported as one of the rare ferromagnetic Kondo systems with a Curie temperature14 K. We present a detailed study of the low-temperature properties on this compound, including magnetization, specific heat, and electrical resistivity in magnetic fields up to 5 T. Elastic neutron-scattering experiments confirm ferromagnetic and exclude ferrimagnetic order of CeTiGe. Analysis of the specific heat gives evidence of a strong magnetic anisotropy in this system as evidenced by a gap. Replacing Ti by V reduces, withfor, suggesting a possible ferromagnetic quantum critical point.