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Magnetic phase diagram of U(Ru0.98Rh0.02)2Si2
被引:2
作者:
Bourdarot, F
[1
]
Fåk, B
Lapierre, F
Sheikin, I
Lejay, P
机构:
[1] CEA, SPSMS, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France
[2] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France
[3] CNRS, Grenoble High Magnet Field Lab, F-38042 Grenoble, France
关键词:
heavy-fermion;
magnetic phase diagram;
D O I:
10.1016/j.physb.2005.01.323
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
The magnetic phase diagram of U(Ru0.98Rh0.02)(2)Si-2 has been determined by neutron-scattering, specific heat, and magnetization measurements for magnetic fields applied along the c-axis up to 28.7 T. U(Ru0.98Rh0.02)(2)Si-2 has the same magnetic properties as URu2Si2 under hydrostatic pressure and shows two magnetic transitions. At the second-order phase transition, T-m = 13.4 K, a tiny ordered moment of 0.04 mu(B)/U is established, while at T-M = 8 K, a first-order phase transition gives rise to a large moment of 0.26 mu(B)/U. The large-moment phase disappears at a magnetic field of 5 T while the critical field for the small-moment phase is extrapolated to 36T, as in URu2Si2. (c) 2005 Elsevier B.V. All rights reserved.
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页码:1132 / 1134
页数:3
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