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Polarisation-depend...
Polarisation-dependent X-ray absorption in high- and low-Tc Bi2Sr2Can-1CunO4+2n superconductors
- Article/chapterEnglish1993
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LIBRIS-ID:oai:lup.lub.lu.se:20720e70-3da9-4d2b-9d93-dd9c95bfb2c2
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https://lup.lub.lu.se/record/20720e70-3da9-4d2b-9d93-dd9c95bfb2c2URI
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https://doi.org/10.1016/0921-4534(93)90116-8DOI
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Language:English
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Summary in:English
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Taking advantage of the linear polarisation of synchrotron radiation, the polarisation dependence of the O K and Cu L3 X-ray absorption edges has been compared for in situ cleaved Bi2Sr2CaCu2O8 and Bi2Sr2CuO6 single crystals. The X-ray absorption spectra were measured by means of total electron yield detection. The spectra show for both crystals that the lowest unoccupied Cu 3d and O 2p orbitals are dominantly oriented parallel to the a-b plane, but also the presence of a small amount of unoccupied orbitals oriented perpendicular to the a-b plane can be deduced from both the O K and Cu L3 absorption spectra. A shift of the order of 0.5 eV between absorption into the in-plane and the out-of-plane Cu 3d orbitals was measured for the Bi2Sr2CaCu2O8 crystal, but no such shift was found for the Bi2Sr2CuO6 crystal.
Added entries (persons, corporate bodies, meetings, titles ...)
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Saini, N. L.
(author)
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Andersen, J. N.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(Swepub:lu)slju-jan
(author)
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Nyholm, R.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(Swepub:lu)maxl-rny
(author)
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Lundgren, E.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(Swepub:lu)slju-elu
(author)
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Lindau, I.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(Swepub:lu)slju-ili
(author)
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van Acker, J. F.
(author)
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Leonyuk, L.Lomonosov Moscow State University
(author)
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Söderholm, S.KTH Royal Institute of Technology
(author)
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Flodström, S. A.KTH Royal Institute of Technology
(author)
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SynkrotronljusfysikFysiska institutionen
(creator_code:org_t)
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In:Physica C: Superconductivity and its Applications: Elsevier BV214:1-2, s. 119-1260921-4534
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Qvarford, M.
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Saini, N. L.
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Andersen, J. N.
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Nyholm, R.
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Lundgren, E.
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Lindau, I.
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van Acker, J. F.
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Leonyuk, L.
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Söderholm, S.
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Flodström, S. A.
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Physica C: Super ...
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