The response time and transmittivity of the magnetic fluid (MF) for different concentrations at room temperature were investigated in this letter. The volume fraction of the investigated sample ranged from 0.44% to 6.47%. It was found that the transmittivity decreased with increasing concentration under a given magnetic field, and the evolution time was changed with different concentrations. Moreover, the light intensity decreased rapidly at the beginning and then became stable when the magnetic field was applied.
© 2008 Chinese Optics Letters
Yun Zou, Yiyou Nie, Ziyun Di, Dongchen Zhang, Minghuang Sang, and Xianfeng Chen, "Response of self-assembly for magnetite nanocrystal in magnetic fluid under an applied magnetic field," Chin. Opt. Lett. 6, 767-769 (2008)