Title :
Exchange anisotropy in Fe-MnF2 nanogranular films
Author :
Furubayashi, Takao ; Mamiya, Hiroaki
Author_Institution :
Nanomater. Labs., Nat. Inst. for Mater. Sci., Tsukuba, Japan
Abstract :
Nanogranular composite films composed of iron and MnF2 were investigated by magnetization measurements and Mossbauer spectroscopy. Magnetic properties below the Neel temperature TN=67 K of MnF2 are explained by introducing unidirectional anisotropy resulting from the exchange couplings at the interface. Enhancement of higher order anisotropy was also indicated.
Keywords :
Mossbauer spectroscopy; Neel temperature; discontinuous metallic thin films; iron alloys; magnetic anisotropy; magnetic thin films; manganese compounds; nanocomposites; nanoparticles; 67 K; Fe-MnF2; Mossbauer spectroscopy; Neel temperature; composite films; exchange anisotropy; magnetic anisotropy; magnetic films; magnetization measurements; nanogranular films; unidirectional anisotropy; Anisotropic magnetoresistance; Couplings; Iron; Magnetic anisotropy; Magnetic films; Magnetic properties; Magnetization; Perpendicular magnetic anisotropy; Spectroscopy; Temperature; MÖssbauer effect; Magnetic anisotropy; magnetic films;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.855220
