부산대학교 도서관

In this study, we propose a novel evaluation method, unit cell analysis, which plots L10−type lattice constants c and a on two orthogonal axes. We applied it to FePt alloy films to evaluate its usefulness. It was found that the unit cell volume of FePt alloy films does not change even if the degree of order changes. Unit cell analysis was also performed for FePt alloy films deposited with N2 and H2 gases. The unit cell volume increased as the mixing ratio increased. This is due to the solid solution of nitrogen and hydrogen in the FePt lattice. In addition, the solid solution of N atoms anisotropically stretches the c-axis, while that of H atoms isotropically stretches the lattice of the L10 phase.