Time-of-flight single-crystal neutron diffraction to 10 GPa and above

摘要

Single-crystal diffraction techniques offer significant advantages over powder diffraction methods, but until recently high-resolution neutron single-crystal studies at high pressure have been restricted to pressures below 2 GPa. We present technical developments which now allow accurate single-crystal studies up to 10 GPa and at temperatures down to 10K using time-of-flight Laue diffraction and the Paris-Edinburgh press. Prospects for work above 10 GPa are discussed, and some data from a successful test at 12 GPa are shown.