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Proceedings Paper

ZnO based diluted magnetic semiconductor thin films by RF magnetron sputtering for spin photonic devices
Author(s): J. Elanchezhiyan; K. P. Bhuvana; N. Gopalakrishnan; T. Balasubramanian
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Paper Abstract

Transition metal (TM) doped ZnO is a promising diluted magnetic semiconductor (DMS) material for the fabrication of spintronics devices. In this paper, we have investigated Mn and Cr doped ZnO thin films grown by RF magnetron sputtering. The films grown on Si(100) and sapphire (Al2O3) have been characterized by X-ray diffraction (XRD) and Vibrating Sample Magnetometer (VSM) to know its structural and magnetic properties. The XRD results show that the Mn doped ZnO films deposited on Si (100) exhibit a polycrystalline nature whereas the films on sapphire substrate have only (002) preferential orientations indicating that the films are single crystalline. It has been observed from VSM studies that Zn1-xMnxO/Al2O3(0001) and Zn1-xCrxO/Si(100) system shows ferromagnetic nature while the paramagnetic behaviour observed in Zn1-xMnxO/Si(100) system.

Paper Details

Date Published: 21 September 2007
PDF: 7 pages
Proc. SPIE 6674, Thin-Film Coatings for Optical Applications IV, 66740C (21 September 2007); doi: 10.1117/12.734048
Show Author Affiliations
J. Elanchezhiyan, National Institute of Technology, Tiruchirappalli (India)
K. P. Bhuvana, National Institute of Technology, Tiruchirappalli (India)
N. Gopalakrishnan, National Institute of Technology, Tiruchirappalli (India)
T. Balasubramanian, National Institute of Technology, Tiruchirappalli (India)


Published in SPIE Proceedings Vol. 6674:
Thin-Film Coatings for Optical Applications IV
Michael J. Ellison, Editor(s)

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