Abstract
Soft x-ray spectroscopy is used to investigate the strain dependence of the metal-insulator transition of VO 2. Changes in the strength of the V3d-O2p hybridization are observed across the transition and are linked to the structural distortion. Furthermore, although the V-V dimerization is well described by dynamical mean-field theory, the V-O hybridization is found to have an unexpectedly strong dependence on strain that is not predicted by band theory, emphasizing the relevance of the O ion to the physics of VO 2.
Original language | English |
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Article number | 081104 |
Journal | Physical Review B: Condensed Matter and Materials Physics |
Volume | 85 |
Issue number | 8 |
DOIs | |
Publication status | Published - 10 Feb 2012 |