Polarity control of ZnO films on (0001) Al2O3 by Cr-compound intermediate layers
- 14 May 2007
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 90 (20), 201907
- https://doi.org/10.1063/1.2740190
Abstract
This letter presents a reliable and very easy method for selective growth of polarity controlled ZnO films on (0001) substrates by plasma-assisted molecular-beam epitaxy. Cr-compound intermediate layers are used to control the crystal polarity of ZnO films on (0001) . ZnO films grown on rocksalt structure CrN/(0001) shows Zn polarity, while those grown on rhombohedral shows O polarity. Possible interface atomic arrangements for both heterostructures are proposed.
Keywords
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