Anisotropic phonon density of states in FePt nanoparticles with L1(0) structure

作者：Tamada Yoshinori^*; Masuda Ryo; Togo Atsushi; Yamamoto Shinpei; Yoda Yoshitaka; Tanaka Isao; Seto Makoto; Nasu Saburo; Ono Teruo

来源：Physical Review B, 2010, 81(13): 132302.

DOI：10.1103/PhysRevB.81.132302

The phonon states of iron atoms in the easy-axis aligned L1(0)-FePt nanoparticles were investigated using Fe-57 nuclear-resonant inelastic scattering. It was revealed that the phonon density of states (PDOS) in the L1(0)-FePt has a pronounced anisotropy. To study the results from a theoretical point of view, we calculated the PDOS of the L1(0)-FePt in the bulk state by means of the first-principles method. The results were in good agreement with the experimental results.

• 出版日期2010-4-1