Title :
Inter-Layer Exchange Coupling in
Multilayers Fabricated on
Author :
Miyawaki, Tetsuya ; Takahashi, Koichi ; Fukatani, N. ; Ueda, Kazunori ; Asano, Hiroya
Author_Institution :
Nagoya Univ., Nagoya, Japan
Abstract :
In this study, we have fabricated Heusler alloy Fe2CrSi/Fe2VSi superlattice on MgAl2O4 substrate and have investigated inter-layer exchange coupling among Fe2CrSi layers. Biquadratic coupling is dominated below the Neel temperature of Fe2VSi. By comparing magnetic coupling energy at 77 K and room temperature, it is suggested that the inter-layer exchange coupling is dominated by the proximity effect, i.e. the antiferromagnetic alignment of magnetic moments in Fe2VSi spacer layer.
Keywords :
Neel temperature; antiferromagnetic materials; chromium alloys; exchange interactions (electron); iron alloys; magnetic moments; magnetic multilayers; metallic superlattices; silicon alloys; vanadium alloys; Fe2CrSi-Fe2VSi; Heusler alloy; MgAl2O4; Neel temperature; antiferromagnetic alignment; biquadratic coupling; interlayer exchange coupling; magnetic moments; multilayers; proximity effect; spacer layer; superlattice; temperature 293 K to 298 K; temperature 77 K; Couplings; Magnetic multilayers; Magnetic superlattices; Perpendicular magnetic anisotropy; Saturation magnetization; ${rm Fe}_{2}{rm VSi}$; Heusler alloy; interlayer exchange coupling; superlattice;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2152372