Document 
Eur. Phys. J. B 12, 509-513 (1999)
Charge stripes seen with X-rays in
T. Niemöller1, N. Ichikawa2, T. Frello3, H. Hünnefeld1, N.H. Andersen3, S. Uchida2, J.R. Schneider1 and J.M. Tranquada4 1 Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22603 Hamburg, Germany
2 Department of Superconductivity, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
3 Condensed Matter Physics and Chemistry Department, Risø National Laboratory, 4000 Roskilde, Denmark
4 Brookhaven National Laboratory, Upton, NY 11973, USA
(Received 27 April 1999)
Abstract
Superstructure reflections due to the ordering of holes into stripes
in
have been studied with high energy
X-ray diffraction. These reflections have been observed clearly for the
first time
in a sample which is superconducting at low temperatures (
K).
The stripe peaks vanish above 62(5) K whereas the magnetic signal of the
stripe ordering which has been seen with
neutrons before is already
suppressed at 
K. Our results confirm that
the ordering of spins and holes is driven by the charges as it is found in
the case of La1.6-xNd0.4SrxCuO4 at the doping level
of x=0.12.
61.10.Nz - Single-crystal and powder diffraction.
74.72.Dn - La-based cuprates.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 1999