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arXiv 0908.3488cond-mat.mtrl-sci
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ZnO中嵌入的尖晶石铁氧体纳米晶:磁性、电子和磁输运性质

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

摘要:

在本文中,我们表明,尖晶石型铁氧体纳米晶体(NiFe 2 O 4,CoFe 2 O 4)可以纹理嵌入内的ZnO矩阵通过离子注入和后退火。这两种铁氧体表现出不同的磁性能,例如矫顽力和磁化强度。观察到反常的霍尔效应和正的磁电阻效应。我们的研究表明,亚铁磁体/半导体混合系统在磁电子学的潜在应用。这种混合系统可以通过选择不同的过渡金属离子(从Mn到Zn)来调节,以获得各种磁性和电子性质。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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