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Vanadium dioxide : A Peierls-Mott insulator stable against disorder

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 نشر من قبل David D. O'Regan
 تاريخ النشر 2012
  مجال البحث فيزياء
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Vanadium dioxide undergoes a first order metal-insulator transition at 340 K. In this work, we develop and carry out state of the art linear scaling DFT calculations refined with non-local dynamical mean-field theory. We identify a complex mechanism, a Peierls-assisted orbital selection Mott instability, which is responsible for the insulating M$_1$ phase, and furthermore survives a moderate degree of disorder.



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