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Author

Lee, Zonghoon
Atomic-Scale Electron Microscopy (ASEM) Lab
Research Interests
  • Advanced Transmission Electron Microscopy (TEM/STEM), in Situ TEM, graphene, 2D materials, low-dimensional crystals, nanostructured materials

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Synthesis and ferromagnetism of Co-doped TiO(2-delta) nanobelts by metallorganic chemical vapor deposition

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Title
Synthesis and ferromagnetism of Co-doped TiO(2-delta) nanobelts by metallorganic chemical vapor deposition
Author
Hoa, Nguyen Thi QuynhLee, ZonghoonKang, Seung-HeeRadmilovic, VelimirKim, Eui-Tae
Keywords
ROOM-TEMPERATURE FERROMAGNETISM; TI1-XCOXO2
Issue Date
200803
Publisher
AMER INST PHYSICS
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.
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DOI
http://dx.doi.org/10.1063/1.2904648
ISSN
0003-6951
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MSE_Journal Papers
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