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Proceedings Paper

Magnetotransmission measurement of ferromagnetism origin in Mn-doped ZnO films
Author(s): Li Zhang; Wei Yu; Shujie Wu; Jinchuan Zhang; Lihua Yang; Guangsheng Fu
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Paper Abstract

Magnetotransmission spectroscopy, the optical absorption measurement using circularly polarized light in the range from far infrared to near ultraviolet, is a direct method to study the energy structure of diluted magnetic semiconductors. In this paper, the magnetotransmission measurement is performed on the ferromagnetic Mn-doped ZnO films. The splitting between two circularly polarized light absorption edge is up to 10 meV under external magnetic field of 0.8 T at room temperature. The splitting is closely follows the magnetization of the films, as measured using Vibrating Sample Magnetometer. The observed ferromagnetic-type splitting of absorption edge is explained by antiferromagnetic p-d exchange interaction.

Paper Details

Date Published: 28 January 2009
PDF: 8 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71562L (28 January 2009); doi: 10.1117/12.807096
Show Author Affiliations
Li Zhang, Hebei Univ. (China)
Wei Yu, Hebei Univ. (China)
Shujie Wu, Hebei Univ. (China)
Jinchuan Zhang, Hebei Univ. (China)
Lanzhou Univ. of Technology (China)
Lihua Yang, Hebei Univ. (China)
Guangsheng Fu, Hebei Univ. (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

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