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Magneto-optical properties of Sr-ferrite films produced by pulsed laser ablation

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5 Author(s)
Papakonstantinou, P. ; Dept. of Pure & Appl. Phys., Queen''s Univ., Belfast, UK ; Atkinson, R. ; O'Neill, M. ; Salter, I.W.
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The effect of substrate temperature and oxygen pressure on the microstructure and magneto-optical (m-o) properties of Sr-ferrite films grown on (001) single crystal sapphire substrates by pulsed laser deposition has been investigated. The results demonstrated that smooth c-axis oriented films, could only be prepared at a narrow operational window of the useful oxygen pressure and at high substrate temperatures. The best films were deposited at a substrate temperature of 840°C, and in an oxygen atmosphere of about 0.1 mbar. These were of good optical quality, hard to scratch, with c-axis oriented perpendicular to the film plane and exhibited bulk m-o properties

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Magnetics, IEEE Transactions on  (Volume:31 ,  Issue: 6 )