DIAMOND-ANVIL CELL FOR SINGLE-CRYSTAL X-RAY-DIFFRACTION STUDIES TO PRESSURES IN EXCESS OF 10 GPA

A new diamond-anvil cell for single-crystal x-ray diffraction structur al studies is presented. By including a simple mechanism for adjusting the parallelism of the opposing diamond culets, the stability of the gasket is maintained to higher pressures than was achieved in earlier cells of a similar two-platen design. Equipped with 600 mu m culet dia mond anvils, the cell has been tested to a pressure of 25 GPa and has been used successfully for equation-of-state measurements and crystal structure determinations to 10 GPa. (C) 1996 American Institute of Phy sics.