Mott Transition in VO2 Revealed by Infrared Spectroscopy and Nano-Imaging

@article{Qazilbash2007MottTI,
  title={Mott Transition in VO2 Revealed by Infrared Spectroscopy and Nano-Imaging},
  author={M. M. Qazilbash and Markus Brehm and Byung Gyu Chae and Pei-Chun Ho and Gregory O. Andreev and Bong Jun Kim and Sun Jin Yun and Alexander V. Balatsky and M B Maple and Fritz Keilmann and Hyun-Tak Kim and Dimitri Basov},
  journal={Science},
  year={2007},
  volume={318},
  pages={1750 - 1753}
}
Electrons in correlated insulators are prevented from conducting by Coulomb repulsion between them. When an insulator-to-metal transition is induced in a correlated insulator by doping or heating, the resulting conducting state can be radically different from that characterized by free electrons in conventional metals. We report on the electronic properties of a prototypical correlated insulator vanadium dioxide in which the metallic state can be induced by increasing temperature. Scanning near… 

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Nanoscale Control of Oxygen Defects and Metal-Insulator Transition in Epitaxial Vanadium Dioxides.

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