Metal-insulator transition in VO2 studied by optical spectroscopy

Kozo Okazaki, Shunji Sugai, Yuji Muraoka, Zenji Hiroi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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 strong temperature dependence. We attribute this to the electron-phonon interaction as in the photoemission spectra.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages1229-1230
Number of pages2
DOIs
Publication statusPublished - Dec 1 2006
Externally publishedYes
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: Aug 10 2006Oct 17 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period8/10/0610/17/06

Keywords

  • Electron-electron interaction
  • Electron-phonon interaction
  • Metal-insulator transition
  • Optical conductivity
  • VO

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Okazaki, K., Sugai, S., Muraoka, Y., & Hiroi, Z. (2006). Metal-insulator transition in VO2 studied by optical spectroscopy. In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 (pp. 1229-1230). (AIP Conference Proceedings; Vol. 850). https://doi.org/10.1063/1.2355148