Spectroscopic ellipsometry and x-ray diffraction are used to investigate the metal-insulator transition in V2O5 films. Below and above Tc no significant change in the (001) peak is observed, but both n and k spectra undergo remarkable changes over the entire photon energy range. The SE and XRD results indicate that the V2O5 film undergoes a MIT without a structural phase transition near 280 °C. Further the MIT is confirmed by measurement of the resistance with temperature.
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Kang et al. (2011) studied this question.
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