Browsing by Author "Fang, H. W."

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Room-temperature ferromagnetism in Zn and Mn codoped SnO(2) films
(2009-01-01)
Liu, S. J.
;
Liu, C. Y.
;
Juang, J. Y.
;
Fang, H. W.
;
電子物理學系
Room-temperature ferromagnetism was observed in Mn and Zn codoped SnO(2) films grown on c-cut sapphires by using pulsed laser deposition technique. The valence of Mn ions in the codoped films is determined to be 2+ from x-ray absorption near edge spectroscopy. Moreover, the ferromagnetism is affected by the carrier concentration of the films. This result is consistent with the carrier-mediated model. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3056374]
Room-temperature ferromagnetism in Zn and Mn codoped SnO2 films
(2009-01-01)
Liu, S. J.
;
Liu, C. Y.
;
Juang, J. Y.
;
Fang, H. W.
;
電子物理學系
Room-temperature ferromagnetism was observed in Mn and Zn codoped SnO2 films grown on c-cut sapphires by using pulsed laser deposition technique. The valence of Mn ions in the codoped films is determined to be 2+ from x-ray absorption near edge spectroscopy. Moreover, the ferromagnetism is affected by the carrier concentration of the films. This result is consistent with the carrier-mediated model. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3056374]