Vacancy-mediated room-temperature ferromagnetism in Zn(1-x)Mn(x)O thin films

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Title:	Vacancy-mediated room-temperature ferromagnetism in Zn(1-x)Mn(x)O thin films
Authors:	GOPALAKRISHNAN, N BALAKRISHNAN, L SRIMATHY, B KUMAR, MS BALASUBRAMANIAN, T
Keywords:	mn-doped zno magnetic semiconductors electronic-structure
Issue Date:	2010
Publisher:	WILEY-V C H VERLAG GMBH
Citation:	PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 207(9), 2180-2184
Abstract:	The effect of oxygen vacancies on ferromagnetism (FM) in Zn(1-x)Mn(x)O thin films grown by radio frequency (RF) sputtering has been investigated. The grown films at different oxygen pressures have been characterized by X-ray diffraction (XRD), Hall effect, photoluminescence (PL) and vibrating sample magnetometry (VSM). The observed ferromagnetism/diamagnetism by the VSM measurement due to the variation of oxygen vacancies has been confirmed by XRD, PL, and Hall results. The vacancy-mediated FM has been explained by the formation of magnetic polarons. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI:	http://dx.doi.org/10.1002/pssa.201026038 http://dspace.library.iitb.ac.in/xmlui/handle/10054/12888 http://hdl.handle.net/10054/12888
ISSN:	1862-6300
Appears in Collections:	Article

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