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Polycrystalline Y3Fe5O12 garnet films grown by a pulsed laser ablation technique

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3 Author(s)
Yang, C.J. ; Electromagnetic Mater. Lab., Res. Inst. of Ind. Sci. & Technol., Pohang, South Korea ; Kim, S.W. ; Kim, Y.S.

The magnetic and crystallographic properties of Y3Fe 5O12 thick films prepared by KrF excimer laser ablation of a stoichiometric garnet target was investigated. It was possible to obtain almost epitaxially oriented films on Al2O 3 (11¯02). Although the crystalline quality depends on substrate temperature and O2 partial pressure used, 4.1 μm thick films of 4π Ms=1300 Gauss and Hc=37.5 Oe were obtained at the substrate temperature of 700°C with P(O2) of 100 mTorr after annealing the as-deposited films at 600°C for 2 hours. These films are expected to be used for magnetostatic spin wave filters at narrow bandwidth frequency

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Magnetics, IEEE Transactions on  (Volume:30 ,  Issue: 6 )