Magnetic properties of Mn-doped armchair ZnO nanotubes: a Monte Carlo study |
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| Authors: | A Jabar M Hamedoun A Benyoussef |
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| Institution: | 1. Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, Morocco;2. Institute of Nanomaterials and Nanotechnologies, MAScIR, Rabat, Morocco;3. Hassan II Academy of Science and Technology, Rabat, Morocco |
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| Abstract: | The magnetic properties of a Mn-doped armchair ZnO nanotube have been studied using Monte Carlo simulation. The variation of zero-field-cooled and field-cooled magnetisation with reduced temperatures for different values of the dilution x (where x is the Mn concentration: Zn1?xMnxO) are given. The freezing temperatures and magnetisation vs. crystal field are calculated for different dilutions x. Finally, the hysteresis loops for different dilutions and temperatures are given for a fixed reduced temperature and crystal field. Superparamagnetic behaviour is observed for small values of x and low temperatures. |
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| Keywords: | Magnetic transition magnetisation ZnO nanotubes |
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