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Nonmagnetic Doping Effect on the Magneto-Transport Properties of Mn Doped ZnO Dilute Magnetic Semiconductors

Published online by Cambridge University Press:  01 February 2011

Govind Mundada ,
Srikanth Manchiraju ,
Ted Kehl ,
Sandhya Pulugam ,
Rishi J. Patel ,
Pawan Kahol  and
Kartik Ghosh
Govind Mundada
Affiliation:
[email protected], Missouri State University, Physics,Astronomy & Materials Science, 833 E Elm,#1802, Springfield, Missouri, 65806, United States, 417-837-7092,417-619-2838
Srikanth Manchiraju
Affiliation:
[email protected], Missouri State University, Physics,Astronomy & Materials Science, United States
Ted Kehl
Affiliation:
[email protected], Missouri State University, Physics,Astronomy & Materials Science, United States
Sandhya Pulugam
Affiliation:
[email protected], Missouri State University, Physics,Astronomy & Materials Science, United States
Rishi J. Patel
Affiliation:
[email protected], Missouri State University, Center for Applied Science and Engineering
Pawan Kahol
Affiliation:
[email protected], Missouri State University, Physics,Astronomy & Materials Science, United States
Kartik Ghosh
Affiliation:
[email protected], Missouri State University, Physics,Astronomy & Materials Science
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Abstract

In this paper we report non magnetic elements (Al and Cu) doping effect on the structural and magneto-transport properties of Zn0.85Mn0.15O dilute magnetic semiconductors. Thin films of undoped Zn0.85Mn0.15O (ZnMnO), Al doped Zn0.80Al0.05Mn0.15O (ZnMnAlO), and Cu doped Zn0.85Cu0.05Mn0.15O (ZnMnCuO) were grown on sapphire single crystals using pulse laser deposition technique. X-Ray Diffraction and Raman Spectra confirm the epitaxial growth with a strong orientation along the c-axis. Scanning Electron Microscopy and Atomic Force Microscopy reveals surface microstructure of all the films. Magneto transport properties quantify the carrier concentrations and mobilities at room temperature in all the films.

Keywords

physical vapor deposition (PVD)magnetoresistance (transport)spintronic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 891: Symposium EE – Progress in Semiconductor Materials V – Novel Materials and Electronics and Optoelectronic Applications , 2005 , 0891-EE10-02
Copyright
Copyright © Materials Research Society 2006

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References

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