Title :
GMR effect due to L10 FePt grains
Author :
Zhang, Zhengang ; Kang, Kyongha ; Omoto, Naotoshi ; Suzuki, Takao
Author_Institution :
Toyota Technol. Inst., Nagoya, Japan
Abstract :
The giant magnetoresistance (GMR) effect is found in granular FePt-Ag composite films, which arises from the alignment of L10 FePt grains under a magnetic field. The maximum GMR ratio at room temperature is 0.7%, which is much higher than the resistivity enhancement due to the domain wall scattering in highly ordered L10 FePt films.
Keywords :
ferromagnetic materials; giant magnetoresistance; iron alloys; magnetic domain walls; magnetic thin films; platinum alloys; silver; GMR effect; L10 FePt grains; domain wall scattering; giant magnetoresistance; granular FePt-Ag composite films; resistivity enhancement; Anisotropic magnetoresistance; Conductivity; Giant magnetoresistance; Magnetic anisotropy; Magnetic domain walls; Magnetic field measurement; Magnetic films; Perpendicular magnetic anisotropy; Scattering; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.815725
