Long-range two-dimensional superstructure in the superconducting electron-doped cuprate Pr0.88LaCe0.12CuO4

Long-range two-dimensional superstructure in the superconducting electron-doped cuprate Pr0.88LaCe0.12CuO4 B. J. Campbell,1,* S. Rosenkranz,2,† H. J. Kang,3 H. T. Stokes,1 P. J. Chupas,2,4 S. Komiya,5 Y. Ando,6 Shiliang Li,7,8 and Pengcheng Dai9 1Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA 2Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 3Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, USA 4Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA 5Central Research Institute of Electric Power Industry, Nagasaka, Yokosuka, Kanagawa 240-0196, Japan 6Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan 7Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 8Collaborative Innovation Center of Quantum Matter, Beijing 100871, China 9Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA (Received 2 October 2014; revised manuscript received 17 June 2015; published 29 July 2015)