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Elsevier, Journal of Magnetism and Magnetic Materials, 1(304), p. 75-78, 2006

DOI: 10.1016/j.jmmm.2006.02.111

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Materials for spintronic: Room temperature ferromagnetism in Zn–Mn–O interfaces

Journal article published in 2006 by A. Quesada, M. A. García, P. Crespo, A. Hernando ORCID
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This paper is available in a repository.

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Abstract

In this paper we study the room temperature ferromagnetism reported on Mn-doped ZnO and ascribed to spin polarization of conduction electrons. We experimentally show that the ferromagnetic behaviour is associated to the coexistence of Mn3+ and Mn+4 in MnO2 grains where diffusion of Zn promotes the Mn4+→Mn3+ reduction. Potential uses of this material in spintronic devices are analysed.