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Surfactant-induced enhanced room temperature ferromagnetism in Zn0.96Mn0.03Li0.01O nanoparticles: Prepared by solid-state pyrolitic reaction
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2007 (English)In: Journal of Crystal Growth, ISSN 0022-0248, E-ISSN 1873-5002, Vol. 307, no 2, 315-320 p.Article in journal (Refereed) Published
Abstract [en]

We report the synthesis of nanoparticles of Zn0.96Mn0.03Li0.01O by a low-temperature solid-state pyrolitic reaction, followed by a surfactant-assisted calcination at 400 degrees C. The X-ray diffraction and transmission electron microscopy analyses showed the formation of impurity free nanocrystals of Mn doped Li co-cloped ZnO with wurtzite structure. XPS data revealed that Mn exists in + 2 oxidation state. DC magnetization measurements as a function of field and temperature showed enhanced room temperature ferromagnetism for the surfactant-treated Zn0:96Mn0.03Li0.01O. FMR signal observed in the EPR spectrum further confirmed its ferromagnetic nature.

Place, publisher, year, edition, pages
2007. Vol. 307, no 2, 315-320 p.
Keyword [en]
DC magnetization, transmission electron microscopy, Mn doped Li, co-doped ZnO nanocrystals, dilute magnetic, semiconductor, mn-doped zno, thin-films, magnetic semiconductor, single-crystals, quantum dots, nanocrystals, growth, oxides
URN: urn:nbn:se:kth:diva-17046DOI: 10.1016/j.jcrysgro.2007.06.027ISI: 000250245900011ScopusID: 2-s2.0-34548438991OAI: diva2:335089
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Rao, K. V.
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Engineering Material Physics
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