Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Materials Science & Engineering |
Creator |
Tiwari, Ashutosh |
Other Author |
Ramachandran, S.; Narayan, J. |
Title |
Zn0.9Co0.1O-based diluted magnetic semiconducting thin films |
Date |
2004 |
Description |
Here we report a systematic study of structural, optical, and magnetic measurements on epitaxial Zn0.9Co0.1O films grown on c-plane sapphire single crystal, at various temperatures (500-650°C), using pulsed-laser deposition. The main emphasis in this work has been on the correlation of microstructure with properties, specifically with magnetic properties and the fate of cobalt ions into substitutional sites versus precipitates. The reasons for room-temperature ferromagnetism are explored, and convincingly proved to be one of the inherent properties of the material. Most importantly, the presence of nanoclusters of any magnetic phase was ruled out. This was determined by high-resolution transmission electron microscopy, coupled with electron energy loss spectroscopy and STEM-Z (scanning transmission electron microscopy-atomic number) contrast studies. |
Type |
Text |
Publisher |
American Institute of Physics (AIP) |
Journal Title |
Applied Physics Letters |
Volume |
84 |
Issue |
25 |
First Page |
5255 |
Last Page |
5257 |
DOI |
10.1063/1.1764936 |
citatation_issn |
36951 |
Subject |
ZnO; Cobalt |
Subject LCSH |
Metal oxide semiconductors; Zinc oxide; Thin films; Semiconductor doping; Diluted magnetic semiconductors |
Language |
eng |
Bibliographic Citation |
Ramachandran, S., Tiwari, A., & Narayan, J. (2004). Zn0.9Co0.1O-based diluted magnetic semiconducting thin films. Applied Physics Letters, 84(25), 5255-7. |
Rights Management |
(c)American Institute of Physics. The following article appeared in Ramachandran, S., Tiwari, A., & Narayan, J., Applied Physics Letters, 84(25), 2004 and may be found at http://dx.doi.org/10.1063/1.1764936 |
Format Medium |
application/pdf |
Format Extent |
299,303 bytes |
Identifier |
ir-main,12072 |
ARK |
ark:/87278/s6dn4p9m |
Setname |
ir_uspace |
ID |
703686 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6dn4p9m |