@article{oai:tsukuba.repo.nii.ac.jp:00018412,
author = {鈴木, 修吾 and Li, Ming-Fang and Ariizumi, Toshihiro and Suzuki, Shugo},
issue = {5},
journal = {Journal of the Physical Society of Japan},
month = {Apr},
note = {application/pdf, We study the magneto-optical Kerr effect using fully relativistic calculations. Spin–orbit coupling is dealt with exactly solving the Dirac equation directly and the matrix elements of the Dirac matrices α are used in a fully relativistic expression of the Kubo formula for the optical conductivity derived with a relativistic sum rule. We also perform approximate calculations of the optical conductivity to examine the accuracy of a partly relativistic expression in which the matrix elements of the momentum operator p are used instead. As an example, we carry out calculations for bcc Fe and fcc Ni using the fully relativistic full-potential linear-combination-of-atomic-orbitals method. It is found that the partly relativistic treatment is good for the diagonal optical conductivity while it is not very good for the off-diagonal optical conductivity, the Kerr rotation angle, and the Kerr ellipticity. The results of the present study are compared to those of experimental and other theoretical studies.},
title = {Fully Relativistic Calculations of Magneto-Optical Kerr Effect},
volume = {76},
year = {2007}
}