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CiteWeb id: 20010000334

CiteWeb score: 2639

DOI: 10.1126/science.1056186

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.

The publication "Room-Temperature Ferromagnetism in Transparent Transition Metal-Doped Titanium Dioxide" is placed in the Top 10000 of the best publications in CiteWeb. Also in the category Physics it is included to the Top 1000. Additionally, the publicaiton "Room-Temperature Ferromagnetism in Transparent Transition Metal-Doped Titanium Dioxide" is placed in the Top 1000 among other scientific works published in 2001.
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