Room-temperature ferromagnetism in (Mn, N)-codoped TiO{sub 2} films grown by plasma assisted molecular beam epitaxy

Journal Article · Sat Nov 01 00:00:00 EDT 2008 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3006135· OSTI ID:21185896

Li, X Y; Wu, S X; Xu, L M; Liu, Y J; Xing, X J; Li, S W ^[1]

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1. State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275 (China)

(Mn, N)-codoped TiO{sub 2} films have been fabricated by plasma assisted molecular beam epitaxy. X-ray diffraction and x-ray photoelectron spectroscopy studies indicate the incorporation of both Mn and N ions into the TiO{sub 2} lattice but without Mn metal clusters. Ferromagnetism with clear hysteresis at 300 K is observed in (Mn, N)-codoped TiO{sub 2} films, whereas the films without nitrogen show paramagnetic behavior. It is demonstrated experimentally that the intentional nitrogen doping plays an important role in realizing dominant ferromagnetic ordering in Mn-doped TiO{sub 2} films.

• OSTI ID: 21185896
• Journal Information: Journal of Applied Physics, Vol. 104, Issue 9; Other Information: DOI: 10.1063/1.3006135; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL GROWTH
DOPED MATERIALS
FERROMAGNETIC MATERIALS
FERROMAGNETISM
HYSTERESIS
LAYERS
MANGANESE
MANGANESE IONS
MOLECULAR BEAM EPITAXY
NITROGEN
NITROGEN IONS
PARAMAGNETISM
SEMICONDUCTOR MATERIALS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
THIN FILMS
TITANIUM OXIDES
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY