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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 9 — Apr. 23, 2012
  • pp: 9624–9639

Giant Faraday rotation in BixCe3-xFe5O12 epitaxial garnet films

M. Chandra Sekhar, Mahi R. Singh, Shantanu Basu, and Sai Pinnepalli  »View Author Affiliations


Optics Express, Vol. 20, Issue 9, pp. 9624-9639 (2012)
http://dx.doi.org/10.1364/OE.20.009624


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Abstract

Thin films of BixCe3-xFe5O12 with x = 0.7 and 0.8 compositions were prepared by using pulsed laser deposition. We investigated the effects of processing parameters used to fabricate these films by measuring various physical properties such as X-ray diffraction, transmittance, magnetization and Faraday rotation. In this study, we propose a phase diagram which provides a suitable window for the deposition of BixCe3-xFe5O12 epitaxial films. We have also observed a giant Faraday rotation of 1-1.10 degree/µm in our optimized films. The measured Faraday rotation value is 1.6 and 50 times larger than that of CeYIG and YIG respectively. A theoretical model has been proposed for Faraday rotation based on density matrix method and an excellent agreement between experiment and theory is found.

© 2012 OSA

OCIS Codes
(160.3820) Materials : Magneto-optical materials
(230.2240) Optical devices : Faraday effect
(310.1860) Thin films : Deposition and fabrication

ToC Category:
Thin Films

History
Original Manuscript: February 8, 2012
Revised Manuscript: March 15, 2012
Manuscript Accepted: March 19, 2012
Published: April 12, 2012

Citation
M. Chandra Sekhar, Mahi R. Singh, Shantanu Basu, and Sai Pinnepalli, "Giant Faraday rotation in BixCe3-xFe5O12 epitaxial garnet films," Opt. Express 20, 9624-9639 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-9-9624


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