Eur. Phys. J. B 12, 509-513 (1999)
https://doi.org/10.1007/s100510051032

Charge stripes seen with X-rays in La_1.45Nd_0.4Sr_0.15CuO₄

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

Abstract

Superstructure reflections due to the ordering of holes into stripes in La_1.45Nd_0.4Sr_0.15CuO₄ 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 (T_c ~ 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 La_1.6-xNd_0.4Sr_xCuO₄ at the doping level of x=0.12.