In-Plane Transverse Susceptibility of (111)-Oriented Iron Garnet Films

Author

Syvorotka, I.I. ; Vetoshko, P.M. ; Skidanov, V.A. ; Shavrov, V.G. ; Syvorotka, I.M.

Author_Institution

Dept. of Crystal Phys. & Technol., Sci. Res. Co. CARAT, Lviv, Ukraine

Volume

51

Issue

1

fYear

2015

fDate

Jan. 2015

Firstpage

1

Lastpage

3

Abstract

Iron garnet films with various compositions Y₃Fe₅O₁₂ (YIG), (LuPr)₃Fe₅O₁₂ (LuPrIG), and Tm₃(FeSc)₅O₁₂ (TmScIG) were grown by liquid phase epitaxy on gadolinium gallium garnet substrates. The angular dependences of in-plane transverse magnetic susceptibility χ´(φ) were investigated to estimate their applicability as a fluxgate core. The χ´(φ) dependence permitted the determination of the anisotropy field H_C in the film plane. Experimentally obtained values of H_C show good agreement with theoretical values and correspond to 2.5, 0.92, and 0.03 Oe for YIG, LuPrIG, and TmScIG epitaxial films, respectively. The influence of garnet composition on mechanisms of decreasing of induced in-plane anisotropy field was determined. TmScIG films exhibit about 100-fold reduction in the anisotropy in the plane of the film as compared with films of pure YIG.

Keywords

garnets; liquid phase epitaxial growth; lutetium compounds; magnetic anisotropy; magnetic epitaxial layers; magnetic susceptibility; praseodymium compounds; thulium compounds; yttrium compounds; (111)-oriented iron garnet film growth; (LuPr)₃Fe₅O₁₂; Tm₃(FeSc)₅O₁₂; Y₃Fe₅O₁₂; film plane; fluxgate core; gadolinium gallium garnet substrate; garnet composition; in-plane transverse magnetic susceptibility; induced in-plane anisotropy field; liquid phase epitaxy; Anisotropic magnetoresistance; Garnets; Iron; Magnetic susceptibility; Magnetometers; Perpendicular magnetic anisotropy; Epitaxial iron garnet film; fluxgate magnetometer; magnetic anisotropy; magnetic susceptibility;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2356175

Filename

7029234