Published January 7, 2008
| Version v1
Journal article
Effect of oxygen partial pressure on the ferromagnetism of Cr-doped TiO2 films
- 1. Department of Electronics, College of Information Technical Science, Nankai University, Tianjin 300071 (China)
Description
Polycrystalline Cr-doped TiO2 films were fabricated by co-sputtering Cr and TiO2 targets in a pure Ar and O2 mixture with various oxygen partial pressures. Ferromagnetism is observed in all samples and the Curie temperatures are well above 390 K. The saturation magnetization of films shows strong dependence on the oxygen growth pressure while keeping a constant Cr concentration. The ferromagnetism is enhanced in the films deposited at lower oxygen pressures which are thus oxygen deficient, indicating an important role of oxygen vacancies in the ferromagnetic origin of Cr-doped TiO2
Additional details
Identifiers
- DOI
- 10.1088/0022-3727/41/1/015005;
- PII
- S0022-3727(08)62454-7;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 41
- Journal Issue
- 1
- Journal Page Range
- p. 015005
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39040038
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ARGON; CHROMIUM; CRYSTAL GROWTH; CURIE POINT; DOPED MATERIALS; FERROMAGNETISM; FILMS; MAGNETIZATION; MIXTURES; OXYGEN; PARTIAL PRESSURE; POLYCRYSTALS; SPUTTERING; TITANIUM OXIDES; VACANCIES
- Descriptors DEC
- CHALCOGENIDES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; DISPERSIONS; ELEMENTS; FLUIDS; GASES; MAGNETISM; MATERIALS; METALS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; RARE GASES; THERMODYNAMIC PROPERTIES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TRANSITION TEMPERATURE