Photo-Induced Magnetic Anisotropy of Polymer Film Containing Azobenzene Organic Free Radical Group
XU Ze-Da, ZHANG Yong, CHEN Xiao-Fang, FAN Xing-He, WAN Xin-Hua, ZHOU Qi-Feng
Department of Polymer Science and Engineering, College of Chemistry, Peking University, Beijing 100871
Photo-Induced Magnetic Anisotropy of Polymer Film Containing Azobenzene Organic Free Radical Group
XU Ze-Da;ZHANG Yong;CHEN Xiao-Fang; FAN Xing-He;WAN Xin-Hua;ZHOU Qi-Feng
Department of Polymer Science and Engineering, College of Chemistry, Peking University, Beijing 100871
关键词 ：
42.65.Hw ,
42.65.-k ,
42.65.Sf
Abstract ： The forward degenerate four-wave mixing geometry was employed to induce microstructure in an organic free radical azobenzene polymer film. Before irradiated with Ar+ laser beams (λ =514.5 nm), the azobenzene organic free radical polymer exhibits magnetic isotropic measured by superconducting quantum interference device. After photo-induced microstructure, the polymer film becomes magnetic anisotropy. When the applied magnetic field H = 50 Gauss, the magnetization along the normal direction of the polymer film is Mz = 5.5 x 10-5 emu/g, which is larger than Mx = 4.1 x 10-5 emu/g in the direction parallel to the polymer film.
Key words ：
42.65.Hw
42.65.-k
42.65.Sf
出版日期: 2003-02-01
:
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
42.65.-k
(Nonlinear optics)
42.65.Sf
(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
引用本文:
XU Ze-Da;ZHANG Yong;CHEN Xiao-Fang; FAN Xing-He;WAN Xin-Hua;ZHOU Qi-Feng. Photo-Induced Magnetic Anisotropy of Polymer Film Containing Azobenzene Organic Free Radical Group[J]. 中国物理快报, 2003, 20(2): 240-242.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2003/V20/I2/240
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