https://doi.org/10.1007/s100510051032
Charge stripes seen with X-rays in La1.45Nd0.4Sr0.15CuO4
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
Published online: 15 December 1999
Superstructure reflections due to the ordering of holes into stripes in La1.45Nd0.4Sr0.15CuO4 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 (Tc ~ 10 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 ~ 45 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.
PACS: 61.10.Nz – Single-crystal and powder diffraction / 74.72.Dn – La-based cuprates
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999