Detailed study of charged stripes in La1.6-xNd0.4SrxCuO4

Hard x-ray diffraction, experiments at the wiggler beamline BW5 at the sync hrotron radiation laboratory HASYLAB in Hamburg have been very succesful in . studying the charge stripe ordering of holes in the CuO2 plane of La1.48N d0.4Sr0.12CuO4. This compound has been previously studied with neutron diff raction, leading to the idea of charged stripes as antiphase domain boundar ies for antiferromagnetic ordering of the Cu spins. In our a-ray experiment s we have shown that correlation between. the stripes exists also perpendic ular to the CuO2 planes. The modulation of the intensities along the l-dire ction have been. measured at several positions in reciprocal space. We have been succesful in observing stripe peaks also in samples with Sr doping le vels of x = 0.15 and x = 0.10, whereas no stripe signal has been observed i n a sample with x = 0.20.