TY - JOUR
T1 - Role of electron-electron and electron-phonon interaction effects in the optical conductivity of VO2
AU - Okazaki, K.
AU - Sugai, S.
AU - Muraoka, Y.
AU - Hiroi, Z.
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2006
Y1 - 2006
N2 - We have investigated the charge dynamics of VO2 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.
AB - We have investigated the charge dynamics of VO2 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.
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U2 - 10.1103/PhysRevB.73.165116
DO - 10.1103/PhysRevB.73.165116
M3 - Article
AN - SCOPUS:33645837236
SN - 1098-0121
VL - 73
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
IS - 16
M1 - 165116
ER -