Toroidal diamond anvil cell for detailed measurements under extreme static pressures

• DOI: 10.1038/s41467-018-05294-2
• Publication Date: 2018-07-19T11:46:36Z
• Authors: Agnès Dewaele; Paul Loubeyre; Florent Occelli; Olivier Marie; Mohamed Mezouar
• Keywords: Diamond anvil cell; Gasket; SIGNAL (programming language)

Over the past 60 years, diamond anvil cell (DAC) has been developed into a widespread high static pressure device. The adaptation of laboratory and synchrotron analytical techniques to DAC enables detailed exploration in 100 GPa range. strain anvils under load explains 400 limit conventional DAC. Here we show toroidal shape for tip that extend use toward terapascal toroidal-DAC keeps assets complete, reproducible, accurate characterization materials, from solids gases. Raman signal or X-ray rhenium gasket allow measurement pressure. Here, equations state gold, aluminum, argon are measured with diffraction. data compared recent measurements similar conditions by two other approaches, double-stage dynamic ramp compression.