Volume 41, Number 6, March II 1998
|Page(s)||629 - 634|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Hard–X-ray diffraction study of charge stripe order in
Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches
Elektronen, Synchrotron DESY, Notkestr. 85, D-22603 Hamburg, Germany
2 Physics Department, Brookhaven National Laboratory, Upton, NY 11973 USA
3 Physics Department, University of Stony Brook, Stony Brook, NY 11794 USA
4 Superconductivity Research Course, The University of Tokyo, Yayoi 2-11-16, Bunkyo-ku, Tokyo 113, Japan
5 Condensed Matter Physics and Chemistry Department, Risø National Laboratory, DK-4000 Roskilde, Denmark
Accepted: 21 January 1998
High-energy photon diffraction is used to investigate the charge ordering previously studied by neutron diffraction in . Besides confirming the existence of superlattice peaks due to charge order, the temperature dependence of the peak intensity, width, and position has been determined with improved precision. Furthermore, we show that the scattered intensity has a sinusoidial modulation along , consistent with long-range Coulomb interactions between ordered charges within the CuO2 planes.
PACS: 61.10.-i – X-ray diffraction and scattering / 74.72.Dn – La-based cuprates / 71.45.Lr – Charge-density-wave systems
© EDP Sciences, 1998
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