Growth and characterization of nonpolar, heavily Mn-substituted ZnO films
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | 17D703 |
Journal / Publication | Journal of Applied Physics |
Volume | 115 |
Issue number | 17 |
Publication status | Published - 7 May 2014 |
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DOI | DOI |
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Attachment(s) | Documents
Publisher's Copyright Statement
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-84903878105&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(e3b17d04-0efd-4516-aa22-8f9b6739e5c2).html |
Abstract
Eight percent of Mn was successfully diluted into nonpolar ZnO films deposited by pulsed laser deposition on single crystal (100) SrTiO3 substrates. X-ray diffraction patterns and energy-dispersive X-ray spectroscopy confirmed high crystallinity of the films and excluded unintentional magnetic doping. A unique surface domain structure was observed by scanning electron microscope and atomic force microscope, which might play a vital role to strain release induced by lattice mismatch between nonpolar (11-20) ZnO film and (100) SrTiO3 substrate. In addition, the films showed strong ferromagnetism with a large coercivity HC ∼180Oe at room temperature. The large magnetic moment is ascribed to carrier-mediated exchange interaction between the Mn ions, where the majority of the carriers are oxygen vacancies. © 2014 AIP Publishing LLC.
Research Area(s)
Citation Format(s)
Growth and characterization of nonpolar, heavily Mn-substituted ZnO films. / Shao, Q.; Ku, P. S.; Wang, X. L. et al.
In: Journal of Applied Physics, Vol. 115, No. 17, 17D703, 07.05.2014.
In: Journal of Applied Physics, Vol. 115, No. 17, 17D703, 07.05.2014.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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