Change in the room temperature magnetic property of ZnO upon Mn doping

Details Change in the room temperature magnetic property of ZnO upon Mn doping Change in the room temperature magnetic property of ZnO upon Mn doping

2007-04-26

arxiv.org/abs/0704.3541v3

Physics

Condensed Matter

Materials Science

5 figures

Scientific paper

10.1063/1.2969945

We present in this paper the changes in the room temperature magnetic property of ZnO on Mn doping prepared using solvo-thermal process. The zero field cooled (ZFC) and field cooled (FC) magnetisation of undoped ZnO showed bifurcation and magnetic hysteresis at room temperature. Upon Mn doping the magnetic hysteresis at room temperature and the bifurcation in ZFC-FC magnetization vanishes. The results seem to indicate that undoped ZnO is ferromagnetic while on the other hand the Mn doped ZnO is not a ferromagnetic system. We observe that on addition of Mn atoms the system shows antiferromagnetism with very giant magnetic moments.

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