| dc.contributor.author |
Mohapatra, J. |
|
| dc.contributor.author |
Mishra, D.K. |
|
| dc.contributor.author |
Mishra, D. |
|
| dc.contributor.author |
Perumal, A. |
|
| dc.contributor.author |
Medicherla, V.R.R. |
|
| dc.contributor.author |
Phase, D.M. |
|
| dc.contributor.author |
Singh, S.K. |
|
| dc.date.accessioned |
2018-10-01T12:24:53Z |
|
| dc.date.available |
2018-10-01T12:24:53Z |
|
| dc.date.issued |
2012 |
|
| dc.identifier.citation |
Materials Research Bulletin, 47(6), 2012: 1417-1422 |
|
| dc.identifier.issn |
0025-5408 |
|
| dc.identifier.uri |
http://ore.immt.res.in/handle/2018/1692 |
|
| dc.description.abstract |
We report on the structural, micro-structural and magnetic properties of Zn1-xCoxO (0 <= x <= 0.1) system. Electron probe micro-structural analysis on 5% Co doped ZnO indicates the presence of segregated cobalt oxide which is also confirmed from the Co 2p core level X-ray photoelectron spectrum. The presence of oxygen defects in lower percentage of Co doped ZnO (<= 5%) enhances the carrier mediated exchange interaction and thereby enhancing the room-temperature ferromagnetic behaviour. Higher doping percentage of cobalt (>5%) creates weak link between the grains and suppresses the carrier mediated exchange interaction. This is the reason why room temperature ferromagnetism is not observed in 7% and 10% Co doped ZnO. (C) 2012 Elsevier Ltd. All rights reserved. |
|
| dc.language |
en |
|
| dc.publisher |
Elsevier |
|
| dc.relation.isreferencedby |
SCI |
|
| dc.rights |
Copyright [2012]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository. |
|
| dc.subject |
Materials Sciences |
|
| dc.title |
Room temperature ferromagnetism in Co doped ZnO within an optimal doping level of 5% |
|
| dc.type |
Journal Article |
|
| dc.affiliation.author |
CSIR-IMMT, Bhubaneswar 751013, Odisha, India |
|