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Photoemission and x...
Photoemission and x-ray absorption study of superconducting and semiconducting Ba1-xKxBiO3 single crystals
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- Qvarford, M (author)
- Lund University
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- Nazin, V G (author)
- Russian Research Center 'Kurchatov Institute'
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- Zakharov, A. A. (author)
- Russian Research Center 'Kurchatov Institute'
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- Mikheeva, M N (author)
- Russian Research Center 'Kurchatov Institute'
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- Andersen, J. N. (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Johansson, Mikael (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Chiaia, G (author)
- KTH Royal Institute of Technology
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- Rogelet, T (author)
- KTH Royal Institute of Technology
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- Soderholm, S (author)
- KTH Royal Institute of Technology,Institute of Solid State Physics and Semiconductors, Belarus
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- Tjernberg, O (author)
- KTH Royal Institute of Technology
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- Nylén, H. (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Lindau, I. (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Nyholm, R. (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Karlsson, Ulf O (author)
- KTH Royal Institute of Technology,KTH,Skolan för informations- och kommunikationsteknik (ICT),materialfysik
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Barilo, S N (author)
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Shiryaev, S V (author)
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(creator_code:org_t)
- 1996
- 1996
- English.
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In: Physical Review B Condensed Matter. - 0163-1829 .- 1095-3795. ; 54:9, s. 6700-6707
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http://dx.doi.org/10...
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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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- Semiconducting Ba0.9K0.1BiO3 and superconducting Ba0.6K0.4BiO3 single crystals cleaved in situ have been studied by core level and valence band photoelectron spectroscopy and O K edge x-ray absorption spectroscopy. It was found that the general shape of the valence band spectrum agrees with the shape predicted by band structure calculations, but the intensity near the Fermi level, was lower in the experimental spectrum as compared to the calculated. The O K edge spectra showed that the metallic phase is not related to the presence of doping inducted O 2p holes. This property of Ba1-xKxBiO3 shows that the semiconductor-metal transition of this system is of a different nature than that of the hole doped cuprate high-T-c superconductors. The core level photoemission spectra of the cations showed a small asymmetry for Ba0.9K0.1BiO3. Corresponding spectra for Ba0.6K0.4BiO3 showed a larger asymmetry resulting in a resolved high binding energy shoulder in the Bi 4f spectrum. The origin of this feature is discussed.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Qvarford, M
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Nazin, V G
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Zakharov, A. A.
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Mikheeva, M N
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Andersen, J. N.
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Johansson, Mikae ...
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show more...
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Chiaia, G
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Rogelet, T
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Soderholm, S
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Tjernberg, O
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Nylén, H.
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Lindau, I.
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Nyholm, R.
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Karlsson, Ulf O
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Barilo, S N
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Shiryaev, S V
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Physical Review ...
- By the university
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Royal Institute of Technology
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Lund University