Optical properties for the Mott transition in VO2

Manil Kang; Sok Won Kim; Ji-Wook Ryu; Taejong Noh

doi:10.1063/1.3696031

AIP Advances (Mar 2012)

Optical properties for the Mott transition in VO2

Manil Kang,
Sok Won Kim,
Ji-Wook Ryu,
Taejong Noh

Affiliations

Manil Kang: Department of Physics, University of Ulsan, Ulsan 680-749, Republic of Korea
Sok Won Kim: Department of Physics, University of Ulsan, Ulsan 680-749, Republic of Korea
Ji-Wook Ryu: Department of Physics, Kongju National University, Kongju 314-701, Republic of Korea
Taejong Noh: Department of Physics, Kongju National University, Kongju 314-701, Republic of Korea

DOI: https://doi.org/10.1063/1.3696031
Journal volume & issue: Vol. 2, no. 1
pp. 012168 – 012168-6

Abstract

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The relationship between the first-order metal-insulator transition (MIT) and the structural phase transition (SPT) in VO2 film is analyzed by dielectric function, optical conductivity, plasma energy, and electrical conductivity. The MIT and SPT temperatures in VO2 films were approximately 68 and 75 °C, respectively, with an intermediate phase existing between 68 and 75 °C. The optical and electrical results indicate that the first-order MIT in VO2 films is not driven by the SPT.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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