Single-crystal diffractometer coupled with double-sided laser heating system at the Extreme Conditions Beamline P02.2 at PETRAIII

Combination of in situ laser heating with single-crystal X-ray diffraction (scXRD) in diamond anvil cells (DACs) provides a tool to studycrystal structures and/or chemistry of materials at simultaneous high pressures and high temperatures. Here, we describe the first dedicatedsingle-crystal X-ray diffractometer coupled with double-sided laser heating (dsLH) system. The scXRD/dsLH setup was developed for theP02.2 Extreme Conditions Beamline at PETRA III and became available for general users in 2017. It enables the collection of reliable scXRDdata at simultaneous high pressure and high temperature. We demonstrate the performance of the setup on example of studies of iron andchromium nitrides