arxiv: 0707.3676 · v2 · submitted 2007-07-25 · ❄️ cond-mat.mes-hall

Paramagnetic to Superparamagnetic Transition in Ni(OH)₂ Nanoparticles

S. D. Tiwari (1) , K. P. Rajeev (2) ((1) School of Physics , Materials Science , Thapar University , India , (2) Department of Physics , Indian Institute of Technology Kanpur , India) This is my paper

classification ❄️ cond-mat.mes-hall

keywords temperaturenanoparticlessuperparamagneticsystemtransitionbehaveblockingdependence

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We report the temperature and field dependence of dc magnetization on sol-gel prepared nanoparticles of Ni(OH)_2. At higher temperature the system is found to behave as a paramagnet while we find evidence for superparamagnetic blocking at low temperature. The system shows a paramagnet-superparamagnet transition and we discuss the underlying mechanism.

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Paramagnetic to Superparamagnetic Transition in Ni(OH)₂ Nanoparticles

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