Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8148622 | Journal of Crystal Growth | 2018 | 11 Pages |
Abstract
Epitaxial Fe4âxMnxN (xâ¯=â¯0, 1, 2, 3, and 4) thin films were successfully grown on MgO(0â¯0â¯1) single-crystal substrates by molecular beam epitaxy, and their crystalline qualities and magnetic properties were investigated. It was found that the lattice constants of Fe4âxMnxN obtained from X-ray diffraction measurement increased with the Mn content. The ratio of the perpendicular lattice constant c to the in-plane lattice constant a of Fe4âxMnxN was found to be about 0.99 at x⩾2. The magnetic properties evaluated using a vibrating sample magnetometer at room temperature revealed that all of the Fe4âxMnxN films exhibited ferromagnetic behavior regardless of the value of x. In addition, the saturation magnetization decreased non-linearly as the Mn content increased. Finally, FeMn3N and Mn4N exhibited perpendicular anisotropy and their uniaxial magnetic anisotropy energies were 2.2â¯Ãâ¯105 and 7.5â¯Ãâ¯105â¯erg/cm3, respectively.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Akihito Anzai, Fumiya Takata, Toshiki Gushi, Kaoru Toko, Takashi Suemasu,