Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

The search for new ultraincompressible, superhard materials has been performed largely
through trial and error. Despite the difficulties in synthesizing such materials, interest in this …

Water-rich regions in Earth's deeper mantle are suspected to play a key role in the global
water budget and the mobility of heat-generating elements. We show that ice-VII occurs as …

Cubic BC 2 N was synthesized from graphite-like BC 2 N at pressures above 18 GPa and
temperatures higher than 2200 K. The lattice parameter of c-BC 2 N at ambient conditions is …

Diamond is the archetypal covalent material. Each atom in an sp 3 configuration is bonded
to four nearest neighbours. Because of its remarkable properties, diamond has been …

Here, we report the synthesis of cubic BC 5 (c-BC 5), the diamondlike BC phase with the
highest boron content ever achieved, at 24 GPa and about 2200 K, using both a laser …

We have constructed semiempirical equations of state of Al, Au, Cu, Pt, Ta, and W, which
within experimental error bars describe the available shock-wave, ultrasonic, x-ray, and …

The structure of nanocrystallized zirconia has been investigated in the 1–40-GPa pressure
range at ambient temperature. A continuous transformation towards the ideal fluorite cubic …

The study of solids at high pressures and temperatures is an important area of modern
condensed matter physics, chemistry, and materials science. The last decade has seen …

High-pressure powder x-ray diffraction experiments have been carried out on Os at room
temperature under quasihydrostatic conditions with a He-pressure medium. By fitting the …