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arXiv · 0908.3488

Spinel ferrite nanocrystals embedded inside ZnO: magnetic, electronic and magneto-transport properties

Shengqiang Zhou·K. Potzger·Qingyu Xu·K. Kuepper·G. Talut·D. Marko·A. Muecklich·M. Helm·J. Fassbender·E. Arenholz·H. Schmidt
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Abstract

In this paper we show that spinel ferrite nanocrystals (NiFe2O4, and CoFe2O4) can be texturally embedded inside a ZnO matrix by ion implantation and post-annealing. The two kinds of ferrites show different magnetic properties, e.g. coercivity and magnetization. Anomalous Hall effect and positive magnetoresistance have been observed. Our study suggests a ferrimagnet/semiconductor hybrid system for potential applications in magneto-electronics. This hybrid system can be tuned by selecting different transition metal ions (from Mn to Zn) to obtain various magnetic and electronic properties.

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Shengqiang Zhou, K. Potzger, Qingyu Xu, K. Kuepper, G. Talut, D. Marko, A. Muecklich, M. Helm, J. Fassbender, E. Arenholz, H. Schmidt. 2009-08-24. Spinel ferrite nanocrystals embedded inside ZnO: magnetic, electronic and magneto-transport properties. https://doi.org/10.1103/physrevb.80.094409

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