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O KVV Auger emissio...
O KVV Auger emission versus resonant photoemission at the O K edge of high-Tc superconductors
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- Nylén, H. (författare)
- 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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Qvarford, M. (författare)
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- Chiaia, G. (författare)
- Polytechnic University of Milan
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- Tjernberg, O. (författare)
- KTH Royal Institute of Technology
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- Söderholm, S. (författare)
- KTH Royal Institute of Technology
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- Zakharov, A. A. (författare)
- 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,Russian Research Center 'Kurchatov Institute'
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- Leandersson, M. (författare)
- 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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- Nazin, V. G. (författare)
- Russian Research Center 'Kurchatov Institute'
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- Tsetlin, M. B. (författare)
- Russian Research Center 'Kurchatov Institute'
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- Lev, L. (författare)
- Russian Research Center 'Kurchatov Institute'
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- Andersen, J. N. (författare)
- 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. (författare)
- 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. (författare)
- 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, U. O. (författare)
- KTH Royal Institute of Technology
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- Mikheeva, M. N. (författare)
- Russian Research Center 'Kurchatov Institute'
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- Leonyuk, L. (författare)
- Lomonosov Moscow State University
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(creator_code:org_t)
- 1998
- 1998
- Engelska 10 s.
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Ingår i: Physica C: Superconductivity and its Applications. - 0921-4534. ; 300:3-4, s. 161-170
- Relaterad länk:
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https://lup.lub.lu.s...
Abstract
Ämnesord
Stäng
- Photoelectron spectroscopy results on single crystals of the superconductors Bi2Sr2CaCu2O8,Bi2Sr 2CuO6, Ba0.6K0.4BiO3 and the semiconductor Ba0.9K0.1BiO3 are reported for the photon energy region around the O K absorption threshold. The development of the O-KVV Auger structure has been carefully monitored as a function of photon energy. A non-monotonic behavior displaying a feature at a constant binding energy of about 14 eV was found for Bi2Sr2CaCu2O8 and Bi2Sr2CuO6 in a narrow photon energy region of 1 eV at the main edge of the O K absorption spectrum around 530 eV. The corresponding enhancement, connected with the autoionization of O 2 p states, is absent in Ba1-xKxBiO3 in contrast to Bi2Sr2CaCu2O8 and Bi2Sr2CuO6. The resonant enhancement is more pronounced for Bi2Sr2CuO6 as compared to Bi2Sr2CaCu2O8, which can be explained by a lower charge carrier concentration in the former case, leading to a more localized nature of intermediate O 2 p states. The model parameters Cu d-d and O p-p Coulomb interactions and the charge transfer energy Δ are estimated from the experiments.
Nyckelord
- Coulomb interactions
- Cu-O planes
- Electronic structure
- Resonant photoemission
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Nylén, H.
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Qvarford, M.
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Chiaia, G.
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Tjernberg, O.
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Söderholm, S.
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Zakharov, A. A.
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visa fler...
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Leandersson, M.
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Nazin, V. G.
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Tsetlin, M. B.
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Lev, L.
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Andersen, J. N.
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Nyholm, R.
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Lindau, I.
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Karlsson, U. O.
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Mikheeva, M. N.
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Leonyuk, L.
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Physica C: Super ...
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Lunds universitet