Realization of room temperature ferromagnetism in Zn(1-x)Cr(x)O thin films grown by RF magnetron sputtering
DSpace at IIT Bombay
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Title |
Realization of room temperature ferromagnetism in Zn(1-x)Cr(x)O thin films grown by RF magnetron sputtering
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Creator |
ELANCHEZHIYAN, J
BHUVANA, KP GOPALAKRISHNAN, N CHANG, Y SIVANANTHAN, S KUMAR, MS BALASUBRAMANIAN, T |
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Subject |
zno films
semiconductors design oxide thin films rf sputtering x-ray diffraction afm magnetic measurements |
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Description |
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
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Publisher |
ELSEVIER SCIENCE SA
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Date |
2011-07-28T18:17:33Z
2011-12-26T12:47:17Z 2011-12-27T05:35:13Z 2011-07-28T18:17:33Z 2011-12-26T12:47:17Z 2011-12-27T05:35:13Z 2009 |
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Type |
Article
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Identifier |
JOURNAL OF ALLOYS AND COMPOUNDS, 468(1-2), 7-10
0925-8388 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 |
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Language |
en
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