NI-PT PHASE-DIAGRAM - EXPERIMENT AND THEORY
NI-PT PHASE-DIAGRAM - EXPERIMENT AND THEORY
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DOI：
10.1103/physrevlett.55.1208
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发表时间：
1985-01-01
影响因子：
8.6
通讯作者：
MORANLOPEZ, JI
中科院分区：
文献类型：
--
作者：
DAHMANI, CE;CADEVILLE, MC;MORANLOPEZ, JI
The temperature-composition phase diagram of the Ni 1− x Pt x system was determined by x-ray diffraction and in situ high-temperature measurements of electrical resistivity. The Curie temperatures were also determined for both disordered and ordered alloys. Our results provide direct experimental evidence for the interplay between atomic ordering and magnetism. The experimental measurements are satisfactorily reproduced by a Hamiltonian, solved in the tetrahedron approximation of the cluster-variation method, that contains magnetic interactions dependent on chemical and short-range order.
