A clamp-type pressure cell for high energy x-ray diffraction

We present a clamp-type pressure cell for high energy x-ray diffraction. The pressure cell was specifically designed for studies of weak superstructure reflections at low temperatures in transition metal oxides, resulting from, e. g., charge density modulations. Using a photon energy of E = 100 keV, the bulk properties of single crystals with a volume of typically 2-5 mm(3) can be studied in transmission geometry. To demonstrate the performance of the pressure cell, we present data on the charge stripe order in the high-temperature superconductor La1.875Ba0.125CuO4. (C) 2008 American Institute of Physics.