Bulk charge stripe order competing with superconductivity in   La2-xSrxCuO4 (x=0.12)
  We present a volume-sensitive high-energy x-ray diffraction study of the underdoped cuprate high temperature superconductor La2-xSrxCuO4 (x = 0.12, Tc=27 K) in applied magnetic field. Bulk short-range charge stripe order with propagation vector q_ch = (0.231, 0, 0.5) is demonstrated to exist below T_ch = 85(10) K and shown to compete with superconductivity. We argue that bulk charge ordering arises from fluctuating stripes that become pinned near boundaries between orthorhombic twin domains. 
N. B. Christensen, J. Chang, J. Larsen, M. Fujita, M. Oda, M. Ido, N.   Momono, E. M. Forgan, A. T. Holmes, J. Mesot, M. Hue...
cond-mat.supr-con cond-mat.str-el