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  • Qvarford, M. (author)

Polarisation-dependent X-ray absorption in high- and low-Tc Bi2Sr2Can-1CunO4+2n superconductors

  • Article/chapterEnglish1993

Publisher, publication year, extent ...

  • Elsevier BV,1993
  • 8 s.

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:20720e70-3da9-4d2b-9d93-dd9c95bfb2c2
  • https://lup.lub.lu.se/record/20720e70-3da9-4d2b-9d93-dd9c95bfb2c2URI
  • https://doi.org/10.1016/0921-4534(93)90116-8DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • 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 ...)

  • Saini, N. L. (author)
  • 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)
  • 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)
  • 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)
  • 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)
  • van Acker, J. F. (author)
  • Leonyuk, L.Lomonosov Moscow State University (author)
  • Söderholm, S.KTH Royal Institute of Technology (author)
  • Flodström, S. A.KTH Royal Institute of Technology (author)
  • SynkrotronljusfysikFysiska institutionen (creator_code:org_t)

Related titles

  • In:Physica C: Superconductivity and its Applications: Elsevier BV214:1-2, s. 119-1260921-4534

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