Journal of Guangdong University of Technology ›› 2009, Vol. 26 ›› Issue (4): 30-33.

• Comprehensive Studies • Previous Articles     Next Articles

Magnetic Field-controlled Transmission of Aqueous Fe3O4  Ferrofluids

  

  1.  1.Faculty of Physics and Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,China, 2.Department of Physics,Shantou University,Shantou 515063,China
  • Online:2009-12-01 Published:2009-12-01

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Abstract: The transmission of light in the aqueous ferrofluid films of Fe3O4 in slowly-changing magnetic fields was investigated.The results show that the evolution of transmission with the increase of magnetic fields can be divided into three（for small thickness of the film） or four（for larger thickness of the film） characteristic stages.Film thickness will cause differences in the evolution of the transmission under high magnetic fields.The concentration of magnetic fluids does not...

Key words: ferrofluids； colloid； transmission； magnetic field；

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