Structural and magnetic properties of Co-doped ZnO epitaxial films
SCIE
SCOPUS
- Title
- Structural and magnetic properties of Co-doped ZnO epitaxial films
- Authors
- Lee, HJ; Lee, SH; Yildiz, F; Jeong, YH
- Date Issued
- 2007-03
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- We examined growth conditions to obtain the best quality epitaxial Co-doped ZnO thin films by the laser MBE deposition technique. The RHEED pattern and XRD analysis showed that the growth mode is layer-by-layer and a single phase of the wurtzite ZnO structure results at the optimum growth condition, that is, laser fluence, oxygen partial pressure and substrate temperature being at 0.45 J/cm(2), 1.0 x 10(-6) torr and 550 degrees C, respectively. From AFM measurements, the root mean square value of surface roughness was determined to be about 2 angstrom. The epitaxial Co-doped ZnO thin films were shown to possess intrinsic ferromagnetic ordering at room temperature. (c) 2006 Elsevier B.V. All rights reserved.
- Keywords
- laser MBE; diluted magnetic semiconductor; Co-doped ZnO thin film; SEMICONDUCTORS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23312
- DOI
- 10.1016/j.jmmm.2006.10.1020
- ISSN
- 0304-8853
- Article Type
- Article
- Citation
- JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol. 310, no. 2, page. 2089 - 2091, 2007-03
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