Clearly defined Lorentzian-like profiles of the Ortho-II superstructure diffraction peaks have been observed with neutrons for the first time. The superstructure has been refined by simultaneously fitting neutron and x-ray measurements on the same crystal. The combination of both x-ray and neutron information is important since the formation of the Ortho-II phase is driven by oxygen ordering which can be most clearly seen by the neutrons whilst the x-rays are more sensitive to the heavy ion displacements.
|Journal||Physica C: Superconductivity and its Applications|
|Publication status||Published - 1994|
|Event||4th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors - Grenoble, France|
Duration: 5 Jul 1994 → 9 Jul 1994
|Conference||4th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors|
|Period||05/07/1994 → 09/07/1994|