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Magnetic properties of Ni/Au core/shell studied by Monte Carlo simulations |
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| Authors: | R Masrour L Bahmad M Hamedoun A Benyoussef EK Hlil |
| Institution: | 1. Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Sidi Bouzid, Safi, 63 4600, Morocco;2. LMPHE (URAC 12), Faculté des Sciences, Université Mohammed V-Agdal, Av. Ibn Batouta, B.P. 1014, Rabat, Morocco;3. Institute of Nanomaterials and Nanotechnologies, MAScIR, Rabat, Morocco;4. Hassan II Academy of Science and Technology, Rabat, Morocco;5. Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9, France |
| Abstract: | The magnetic properties of ferromagnetic Ni/Au core/shell have been studied using Monte Carlo simulations within the Ising model framework. The considered Hamiltonian includes the exchange interactions between Ni–Ni, Au–Au and Ni–Au and the external magnetic field. The thermal total magnetizations and total magnetic susceptibilities of core/shell Ni/Au are computed. The critical temperature is deduced. The exchange interaction between Ni and Au atoms is obtained. In addition, the total magnetizations versus the external magnetic field and crystal filed for different temperature are also established. |
| Keywords: | Ni/Au core/shell Monte Carlo simulations Critical temperature Magnetic hysteresis cycle Exchange interactions Coercive field |
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