Title :
Polycrystalline Y3Fe5O12 garnet films grown by a pulsed laser ablation technique
Author :
Yang, C.J. ; Kim, S.W. ; Kim, Y.S.
Author_Institution :
Electromagnetic Mater. Lab., Res. Inst. of Ind. Sci. & Technol., Pohang, South Korea
fDate :
11/1/1994 12:00:00 AM
Abstract :
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
Keywords :
annealing; garnets; magnetic thin films; pulsed laser deposition; yttrium compounds; 4.1 mum; Al2O3 (11¯02) substrate; KrF excimer laser; O2 partial pressure; YFe5O12; YIG; annealing; crystalline quality; epitaxially oriented films; garnet films; magnetostatic spin wave filters; polycrystalline; pulsed laser ablation; stoichiometric garnet target; substrate temperature; Crystallography; Garnets; Iron; Laser ablation; Magnetic properties; Magnetic separation; Magnetostatic waves; Substrates; Temperature dependence; Thick films;
Journal_Title :
Magnetics, IEEE Transactions on
