Magnetic field evolution of critical end point in UGe2
Magnetic field evolution of critical end point in UGe2
复制标题
UGe2 关键终点的磁场演化
DOI:
10.1088/1742-6596/273/1/012017
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
J. Flouquet
中科院分区:
文献类型:
--
作者:
V. Taufour;A. Villaume;D. Aoki;G. Knebel;J. Flouquet
New measurements on the ferromagnetic heavy-fermion superconductor UGe2 are reported. Thermal expansion measurements via strain gage allow us to locate precisely the critical end point (CEP) of the first order boundary between the large moment ferromagnetic phase FM2 (M0 = 1.5 μB) and the small moment phase FM1 (M0 = 0.9 μB). The field dependence of the CEP is compared with that of the paramagnetic-FM1 transition above the tricritical point.