| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8154647 | Journal of Magnetism and Magnetic Materials | 2016 | 6 Pages |
Abstract
The structural, magnetic and magneto-transport of undoped ZnO, Zn0.97Al0.03O, Zn0.95Fe0.05O and Zn0.92Al0.03Fe0.05O thin films grown on Si(100) substrate using pulsed laser deposition were investigated. The single phase nature of the films is confirmed by X-ray diffraction and Raman spectroscopy measurements. The possibility of Fe metal cluster in Fe doped/co-doped films is ruled out by Fe 2p core level photoelectron spectra. From O 1s core level spectra it is observed that oxygen vacancy is present in all the films. The undoped ZnO film shows magnetic ordering below â¼175Â K, whereas Fe doped/codoped samples show magnetic ordering even at 300Â K. The Al doped sample reveals paramagnetic behavior. The magneto-transport measurements suggest that the mobile carriers undergo exchange interaction with local magnetic moments.
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Authors
Santosh Kumar, Deepika Deepika, Malvika Tripathi, Pratyush Vaibhav, Aman Kumar, Ritesh Kumar, R.J. Choudhary, D.M. Phase,