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 publicationAIP Conference Proceedings
Pages1229-1230
Number of pages2
Volume850
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: Aug 10 2006Oct 17 2006

Other

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

Fingerprint

electron phonon interactions
photoelectric emission
insulators
reflectance
conductivity
temperature dependence
metals
spectroscopy

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Okazaki, K., Sugai, S., Muraoka, Y., & Hiroi, Z. (2006). Metal-insulator transition in VO2 studied by optical spectroscopy. In AIP Conference Proceedings (Vol. 850, pp. 1229-1230) https://doi.org/10.1063/1.2355148

Metal-insulator transition in VO2 studied by optical spectroscopy. / Okazaki, Kozo; Sugai, Shunji; Muraoka, Yuji; Hiroi, Zenji.

AIP Conference Proceedings. Vol. 850 2006. p. 1229-1230.

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

Okazaki, K, Sugai, S, Muraoka, Y & Hiroi, Z 2006, Metal-insulator transition in VO2 studied by optical spectroscopy. in AIP Conference Proceedings. vol. 850, pp. 1229-1230, LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24, Orlando, FL, United States, 8/10/06. https://doi.org/10.1063/1.2355148
Okazaki K, Sugai S, Muraoka Y, Hiroi Z. Metal-insulator transition in VO2 studied by optical spectroscopy. In AIP Conference Proceedings. Vol. 850. 2006. p. 1229-1230 https://doi.org/10.1063/1.2355148
Okazaki, Kozo ; Sugai, Shunji ; Muraoka, Yuji ; Hiroi, Zenji. / Metal-insulator transition in VO2 studied by optical spectroscopy. AIP Conference Proceedings. Vol. 850 2006. pp. 1229-1230
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