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Magnetism and Magnetooptical Effects in Ce–Fe Oxides

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5 Author(s)
M. Bolduc ; Dept. of Mater. Sci. & Eng., MIT ; A. R. Taussig ; A. Rajamani ; G. F. Dionne
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The magnetic and magnetooptical properties of CeFeO3(CFO) and YCeCoFeO6(YCFCO) films grown by pulsed laser deposition onto MgO or SrTiO3(100) substrates at ~10-5 Torr or at 6 mTorr O2 are studied. Faraday rotation hysteresis loops were obtained at the 1.55-mum wavelength, yielding a saturation of ~0.6 deg/mum in all CFO films and ~0.25 deg/mum in the YCFCO film grown under vacuum. Optical measurements give a refractive index of 2.9 and an optical absorption of 1.8 dB/mum at the same wavelength. The corresponding saturation magnetization in CFO films reaches 45 emu/cm3 at room temperature. Interpretation of the magnetic and magnetooptical properties is based on the electronic structure and optical transitions of Ce3+ in an iron garnet or orthoferrite lattice

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IEEE Transactions on Magnetics  (Volume:42 ,  Issue: 10 )