Low precessional damping observed for L1(0)-ordered FePd epitaxial thin films with large perpendicular magnetic anisotropy

作者：Iihama S^*; Sakuma A; Naganuma H; Oogane M; Miyazaki T; Mizukami S; Ando Y

来源：Applied Physics Letters, 2014, 105(14): 142403.

DOI：10.1063/1.4897547

High-quality L1(0) ordered 20 nm-thick FePd epitaxial thin films with a large perpendicular magnetic anisotropy were fabricated using a SrTiO3 substrate. The uniaxial crystalline magnetic anisotropy constant Ku evaluated for the films annealed above 500 degrees C was 14 Merg/cm(3). A very low effective damping constant, alpha(eff) = 0.007, was observed for FePd thin films annealed at 500 degrees C. This value is smaller than that of other Fe-based ordered alloys with a large perpendicular magnetic anisotropy.

• 出版日期2014-10-6