Extended Data Fig. 2: Lab-based XRD measurements of a powdered La4Ni3O10-δ single crystal at various pressures at room temperature.
From: Superconductivity in pressurized trilayer La4Ni3O10−δ single crystals
a, XRD measurements at various indicated pressures. The black arrows indicate the intensities from stainless steel. Upon releasing pressure to ambient condition, the diffraction pattern (black solid line) remains essentially unaltered in comparison to the data obtained prior to applying pressure, indicating that the process is reversible and the sample is stable against pressure. The structural transition observed in synchrotron-based XRD was not resolved in this measurement due to limited resolution. b, Measurements of empty cell with stainless steel gasket at indicated pressures at room temperature.
