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Magnetic and Chemical Ordering in the NiPt and the CoPt Systems

Published online by Cambridge University Press:  28 February 2011

J.M. Sanchez ,
J.L. MorÁn-LÓpez  and
M.C. Cadeville
J.M. Sanchez
Affiliation:
Center for Materials Science and Engineering, The University of Texas, Austin, TX 78712, USA
J.L. MorÁn-LÓpez
Affiliation:
Institute of Physics, Universidad Autónoma de San Luis Potosí, 78000 San Luis Potosf, MEXICO
M.C. Cadeville
Affiliation:
Institute de Physique et Chemie des Materiaux de Strasbourg, FRANCE
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Abstract

The interplay between atomic ordering and magnetism in the NiPt and the CoPt systems is investigated theoretically and experimentally. The complete equilibrium phase diagrams are calculated within the framework of statistical models and are compared with experimental data. Experimental results for the Curie temperature, magnetization and paramagnetic susceptibility in ordered and disordered states are satisfactorily reproduced by a Hamiltonian that contains chemical and short-range order dependent magnetic interactions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 186: Symposium I – Alloy Phase Stability and Design , 1990 , 71
Copyright
Copyright © Materials Research Society 1991

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