Optical Properties of Fe3O4 Magnetic Fluid from Iron Sand

A. Puspitaningrum, A. Taufiq, A. Hidayat*, Sunaryono, N. Hidayat, Samian

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


Nowadays, a high sensitive sensor for the magnetic field has become an essential tool that vastly desired in several fields, especially in biomedical application. Therefore, the development of preparing material for the magnetic sensor becomes crucial to be conducted. In this experimnet, we propose the use of Fe3O4 magnetic fluid prepared from a local iron sand in Indonesia as a material for a magnetic sensor. In this work, optical activities of the Fe3O4 magnetic fluid as the effect of magneto-optics were performed under varying external magnetic field. The polarization direction change of the laser was detected as a function of the external magnetic field with the exponential function. Moreover, the intensity collected by a photodetector exhibited a linear correlation with the external magnetic field. These phenomena become strong evidence that the prepared Fe3O4 magnetic fluid opens potential to be applicated further as sensors, especially as a high sensitive optics-based sensor for the magnetic field.

Original languageEnglish
Article number012054
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 31 May 2017
Externally publishedYes
Event4th International Conference on Advanced Materials Science and Technology 2016, ICAMST 2016 - Malang, Indonesia
Duration: 27 Sept 201628 Sept 2016


  • FeO
  • Magnetic fluid
  • iron sand
  • magneto-optic
  • polarization


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