Effect of random crystal field on semi infinite system |
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| Authors: | MR Benayad A Benyoussef A El Kenz |
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| Institution: | 1. Laboratoire de Magnétisme et Physique des Hautes Energies, LMPHE (URAC 12), Département de Physique, B.P. 1014, Faculté des Sciences, Rabat, Morocco;2. Hassan II Academy of Sciences and Technologies, Rabat, Morocco;3. Institute of Nanomaterials and Nanotechnology, MAScIR, Rabat, Morocco |
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| Abstract: | The effect of random crystal-field on the magnetic properties of the semi-infinite system is investigated by the use of the mean field approximation. In this system, the sites of the surface and bulk are occupied by spin- 1/2 and spin-1, respectively. The appearance of the partly ferromagnetic phase, in bulk, gives rise to different types of topology of phase diagrams. The system exhibits tricritical and multicritical points. |
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| Keywords: | Semi-infinite Random crystal-field Ferromagnetism Tricritical point Multicritical point Mean field approximation |
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