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Room-Temperature Ferromagnetism in Transparent Transition Metal-Doped Titanium Dioxide
Abstract
Dilute magnetic semiconductors and wide gap oxide semiconductors are appealing materials for magnetooptical devices. From a combinatorial screening approach looking at the solid solubility of transition metals in titanium dioxides and of their magnetic properties, we report on the observation of transparent ferromagnetism in cobalt-doped anatase thin films with the concentration of cobalt between 0 and 8%. Magnetic microscopy images reveal a magnetic domain structure in the films, indicating the existence of ferromagnetic long-range ordering. The materials remain ferromagnetic above room temperature with a magnetic moment of 0.32 Bohr magnetons per cobalt atom. The film is conductive and exhibits a positive magnetoresistance of 60% at 2 kelvin.
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Cites
Electrochemical Photolysis of Water at a Semiconductor Electrode
FUJISHIMA, A., & HONDA, K. (1972) · Nature · doi:10.1038/238037a0 · Cited by 34,169
Cited by
The surface science of titanium dioxide
Diebold, U. (2003) · Surface Science Reports · doi:10.1016/s0167-5729(02)00100-0 · Cited by 7,944
Synthesis and Characterization of Ion‐Exchangeable Titanate Nanotubes
Sun, X., & Li, Y. (2003) · Chemistry – A European Journal · doi:10.1002/chem.200204394 · Cited by 939
Exfoliated oxide nanosheets: new solution to nanoelectronics
Osada, M., & Sasaki, T. (2009) · Journal of Materials Chemistry · doi:10.1039/b820160a · Cited by 608
Quantitatively Probing the Al Distribution in Zeolites
Vjunov, A., Fulton, J. L., Huthwelker, T., Pin, S., Mei, D., Schenter, G. K., Govind, N., Camaioni, D. M., Hu, J. Z., & Lercher, J. A. (2014) · Journal of the American Chemical Society · doi:10.1021/ja501361v · Cited by 251
Aminolysis Route to Monodisperse Titania Nanorods with Tunable Aspect Ratio
Zhang, Z., Zhong, X., Liu, S., Li, D., & Han, M. (2005) · Angewandte Chemie International Edition · doi:10.1002/anie.200500410 · Cited by 236
Metadata
- Authors
- Matsumoto, Y., Murakami, M., Shono, T., Hasegawa, T., Fukumura, T., Kawasaki, M., Ahmet, P., Chikyow, T., Koshihara, S.-Y., & Koinuma, H.
- Venue
- Science
- Published
- 2001-02-02
- Volume
- 291
- Issue
- 5505
- Pages
- 854-856
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2000652628
- Cited by
- 2,499
- References
- 1
- FWCI
- 85.17
- Type
- journal article
- Language
- en
- Open access
- closed
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- Matsumoto, Y., Murakami, M., Shono, T., Hasegawa, T., Fukumura, T., Kawasaki, M., Ahmet, P., Chikyow, T., Koshihara, S.-Y., & Koinuma, H. (2001). Room-Temperature Ferromagnetism in Transparent Transition Metal-Doped Titanium Dioxide. Science. https://doi.org/10.1126/science.1056186
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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