Title :
Laser deposited bismuth doped iron garnet films with perpendicular anisotropy
Author :
Duan, M. ; Grishin, A.M. ; Rao, K.V. ; Suzuki, T.
Author_Institution :
Dept. of Condensed Matter Phys., R. Inst. of Technol., Stockholm, Sweden
fDate :
11/1/1995 12:00:00 AM
Abstract :
Bi, Ga substituted dysprosium iron garnet films (Bi2.0Dy1.0Fe3.5Ga1.0O 12) have been deposited on ceramic substrates by laser ablation obtaining the same stoichiometric composition as that of the target. Furthermore, after rapid thermal annealing, the as deposited amorphous film became polycrystalline with a nanometric grain structure exhibiting perpendicular anisotropy. AFM analyses of the surface quality of the films indicated a smoothness with Z-rms value of less than 7 Å. A square hysteretic loop with a Faraday rotation of 0.78 deg/μm at zero field has been obtained. The temperature dependence of magnetization and coercivity are also presented
Keywords :
Faraday effect; bismuth compounds; coercive force; garnets; laser materials processing; magnetic hysteresis; magnetic thin films; magnetisation; perpendicular magnetic anisotropy; pulsed laser deposition; rapid thermal annealing; AFM; Bi2.0Dy1.0Fe3.5Ga1.0O 12; BiDyGaFe5O12; BiDyGaIG; Faraday rotation; bismuth doped iron garnet films; coercivity; hysteresis loop; laser ablation; magnetization; nanometric grain structure; perpendicular anisotropy; polycrystalline film; rapid thermal annealing; surface smoothness; Amorphous materials; Anisotropic magnetoresistance; Bismuth; Ceramics; Garnet films; Iron; Laser ablation; Nanostructures; Rapid thermal annealing; Substrates;
Journal_Title :
Magnetics, IEEE Transactions on
