@article{oai:nagoya.repo.nii.ac.jp:00005532, author = {Okazaki, K. and Sugai, S. and Muraoka, Y. and Hiroi, Z.}, issue = {16}, journal = {Physical Review B}, month = {Apr}, note = {We have investigated the charge dynamics of VO_2 by optical reflectivity measurements. Optical conductivity clearly shows a metal-insulator transition. In the metallic phase, a broad Drude-like structure is observed. On the other hand, in the insulating phase, a broad peak structure around 1.3 eV is observed. It is found that this broad structure observed in the insulating phase shows a temperature dependence. We attribute this to the electron-phonon interaction as in the photoemission spectra.}, pages = {165116--165116}, title = {Role of electron-electron and electron-phonon interaction effects in the optical conductivity of VO_2}, volume = {73}, year = {2006} }