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The magneto-optical Co-based amorphous thin film as a magnetic field sensor

S. M. HAMIDI1, M. M. TEHRANCHI1,2,* , Y. CHINIFOROSHAN1

Affiliation

  1. Laser and Plasma Research Institute, Shahid Beheshti University, Evin, Tehran, Iran
  2. Physics Department, Shahid Beheshti University, Evin, Tehran, Iran

Abstract

The aim of the present paper is to report the results of a research conducted to investigate the possibility of application of magneto-optical cobalt based amorphous thin films as a magnetic field sensor. The sensing element is prepared by pulsed laser deposition technique in one-dimensional magneto-photonic crystals with (TiO2/SiO2) 6 / Co67Fe4B14.5Si14.5/(SiO2/TiO2) 6 structure. The optical and magneto-optical properties of the sample were studied in detail so as to use the hypotheses formulated to achieve good Faraday rotation of the media originating in the weak localization of light. Results indicate that Co-based amorphous thin films can be considered a candidate for use as a magnetic field sensor due to their efficient linearity behaviour with respect to the applied current..

Keywords

Co-based amorphous thin film, magnetic field sensor, magneto-photonic crystal, magneto-optical Faraday rotation.

Submitted at: March 16, 2010
Accepted at: May 26, 2010

Citation

S. M. HAMIDI, M. M. TEHRANCHI, Y. CHINIFOROSHAN, The magneto-optical Co-based amorphous thin film as a magnetic field sensor, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 5, pp. 1135-1138 (2010)