Physical properties of amorphous InGaZnO4 films doped with Mn

Amorphous InGaZnO4 (a-IGZO) films doped with various concentrations of Mn have been fabricated by using pulsed-laser deposition technique. Optical, electrical, and magnetic properties of the prepared Mn-doped a-IGZO films were investigated. The resistivity, carrier concentration, and carrier mobilit...

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Bibliographic Details
Published in:Applied physics letters 2009-03, Vol.94 (9)
Main Authors: Liu, Shiu-Jen, Fang, Hau-Wei, Su, Shih-Hao, Li, Chia-Hung, Cherng, Jyh-Shiarn, Hsieh, Jang-Hsing, Juang, Jenh-Yih
Format: Article
Language:English
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Summary:Amorphous InGaZnO4 (a-IGZO) films doped with various concentrations of Mn have been fabricated by using pulsed-laser deposition technique. Optical, electrical, and magnetic properties of the prepared Mn-doped a-IGZO films were investigated. The resistivity, carrier concentration, and carrier mobility of the a-IGZO films were found to be, respectively, increased, decreased, and enhanced by Mn doping. Moreover, the optical transmission is slightly increased in the visible range and the optical band gaps are not affected in the Mn-doped films. Room-temperature ferromagnetism has been observed in the field-dependent magnetization measurements.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3095505