Sequential Electronic and Structural Transitions in VO2 Observed Using X-ray Absorption Spectromicroscopy
classification
❄️ cond-mat.str-el
cond-mat.mtrl-sci
keywords
electronicstructuraltransitionsabsorptionpeierlsspectromicroscopytransitionx-ray
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The popular dual electronic (Mott) and structural (Peierls) transitions in VO2 are explored using x-ray absorption spectromicroscopy with high spatial and spectral resolutions. It is found that during both heating and cooling, the electronic transition always precedes the structural Peierls transition. Between the two transitions, there are intermediate states that are spectrally isolated here.
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