Extraordinary Hall effect and ferromagnetism in Fe-doped reduced rutile
By Zhenjun Wang, Wendong Wang, Jinke Tang, L. D. Tung, L. Spinu, Weilie Zhou. 2003
138 citations recorded by the source corpus.
Room-temperature ferromagnetism is observed in reduced rutile TiO2−δ by Fe doping. The epitaxial films grown by pulsed-laser deposition are carefully examined by x-ray diffraction, transmission electron microscopy, and magnetic and transport measurements. The films exhibit the extraordinary Hall-effect and thin-film magnetic shape anisotropy. The magnetic moments and anticipated Curie temperatures of the films rule out Fe particles, iron oxides, and Ti–Fe oxides as possible sources for the observed magnetic signals. The carriers of the Fe-doped reduced rutile are p-type, with a carrier density of 1×1022/cm3. This room-temperature dilute magnetic semiconductor should find potential applications in spintronics.
Subfields: Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/596057d798b3abe7ce9d5c78ca0f14522c41a1c1
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In Materials Chemistry
Citations in the corpus
- Oxygen vacancy-mediated enhanced ferromagnetism in undoped and Fe-doped TiO2 nanoribbons (2014, background): “The mechanism of FM in Fe-doped TiO2 is rather complicated and several mechanisms have been proposed, such as double exchange and super exchange coupling [20], Ruderman-Kittel-Kasuya-Yoshida (RKKY) [52] and coupling of BMPs, which is formed with a localized hole/electron (usually induced by Ov defec”