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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/7465

Title: Realization of room temperature ferromagnetism in Zn(1-x)Cr(x)O thin films grown by RF magnetron sputtering
Authors: ELANCHEZHIYAN, J
BHUVANA, KP
GOPALAKRISHNAN, N
CHANG, Y
SIVANANTHAN, S
KUMAR, MS
BALASUBRAMANIAN, T
Keywords: zno films
semiconductors
design
oxide
Issue Date: 2009
Publisher: ELSEVIER SCIENCE SA
Citation: JOURNAL OF ALLOYS AND COMPOUNDS, 468(1-2), 7-10
Abstract: Chromium doped zinc oxide (ZnO:Cr) films have been deposited onto sapphire substrates by RF magnetron sputtering. The effects of(different chromium concentrations (5, 15 and 30 mol%) in structural, morphological and magnetic properties have been investigated by X-ray diffraction (XRD), atomic force microscopy (AFM) and vibrating sample magnetometer (VSM), respectively, According to X-ray diffraction the films are preferentially oriented along (0 0 2) diffraction plane and maintain its wurtzite structure by the addition of Cr even for higher concentration. The FWIIM is found to increase initially and it saturates for 15 and 30% of Cr concentration. AFM images reveal that the surface roughness of the films is exponentially decreased upon the addition of Cr. VSM measurement indicates the realization of ferromagnetism at room temperature for the films corresponding to 15 and 30 mol% Cr (loped ZnO Which suggesting that the sufficient number of Cr ions incorporated to induce the magnetic moment. (c) 2008
URI: http://dx.doi.org/10.1016/j.jallcom.2007.12.087
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7465
http://hdl.handle.net/10054/7465
ISSN: 0925-8388
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