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Transfer of spectra...
Transfer of spectral weight and symmetry across the metal-insulator transition in VO2
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Koethe, T. C. (author)
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Hu, Z. (author)
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Haverkort, M. W. (author)
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Schuessler-Langeheine, C. (author)
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Venturini, F. (author)
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Brookes, N. B. (author)
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- Tjernberg, Oscar (author)
- KTH,Materialfysik, MF
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Reichelt, W. (author)
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Hsieh, H. H. (author)
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Lin, H. J. (author)
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Chen, C. T. (author)
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Tjeng, L. H. (author)
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(creator_code:org_t)
- 2006
- 2006
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 97:11
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We present a detailed study of the valence and conduction bands of VO2 across the metal-insulator transition using bulk-sensitive photoelectron and O K x-ray absorption spectroscopies. We observe a giant transfer of spectral weight with distinct features that require an explanation which goes beyond the Peierls transition model as well as the standard single-band Hubbard model. Analysis of the symmetry and energies of the bands reveals the decisive role of the V 3d orbital degrees of freedom. Comparison to recent realistic many body calculations shows that much of the k dependence of the self-energy correction can be cast within a dimer model.
Keyword
- x-ray photoelectron
- electronic-structure
- phase-transitions
- mott-hubbard
- band theory
- photoemission
- oxides
- v2o3
- temperature
- absorption
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Koethe, T. C.
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Hu, Z.
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Haverkort, M. W.
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Schuessler-Lange ...
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Venturini, F.
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Brookes, N. B.
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show more...
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Tjernberg, Oscar
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Reichelt, W.
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Hsieh, H. H.
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Lin, H. J.
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Chen, C. T.
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Tjeng, L. H.
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show less...
- Articles in the publication
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Physical Review ...
- By the university
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Royal Institute of Technology