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Lee, Zonghoon
Atomic-Scale Electron Microscopy Lab.
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Synthesis and ferromagnetism of Co-doped TiO(2-delta) nanobelts by metallorganic chemical vapor deposition

Author(s)
Hoa, Nguyen Thi QuynhLee, ZonghoonKang, Seung-HeeRadmilovic, VelimirKim, Eui-Tae
Issued Date
2008-03
DOI
10.1063/1.2904648
URI
https://scholarworks.unist.ac.kr/handle/201301/5040
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=41349111076
Citation
APPLIED PHYSICS LETTERS, v.92, no.12, pp.1 - 3
Abstract
Ti(1-x)Co(x)O(2-delta) nanobelts were synthesized without using any metal catalysts by metallorganic chemical vapor deposition. The nanobelts consisted of similar to 10-20 nm nanocrystallites, which were dominantly rutile structure. The Ti(0.986)Co(0.014)O(2-delta) nanobelt sample showed a magnetic anisotropy with a high coercive field value (similar to 500 Oe) at room temperature, significantly affected by intrinsic effect. In contrast, the Ti(0.982)Co(0.018)O(2-delta) nanobelt sample revealed isotropic magnetic characteristics due to enhanced Co clustering. A few or several Co clusters per nanobelt were typically observed even in the lightly Co-doped Ti(0.986)Co(0.014)O(2-delta) nanobelts because of the very thin thickness (similar to 20 nm) and high specific surface area of nanobelts.
Publisher
AMER INST PHYSICS
ISSN
0003-6951
Keyword
ROOM-TEMPERATURE FERROMAGNETISMTI1-XCOXO2

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