Pressure effects on the electron transport and structure of Nd12xSrxMnO3 (x50.45, 0.5) were investigated in the range from ambient to ;6 GPa. In Nd0.55Sr0.45MnO3, the low-temperature ferromagnetic metallic state is suppressed and a low-temperature insulating state is induced by pressure. In Nd0.5Sr0.5MnO3, the CE-type antiferromagnetic charge-ordering state is suppressed by pressure. Under pres...

We apply inverse statistical-mechanical methods to find a simple family of optimized isotropic, monotonic pair potentials (that may be experimentally realizable) whose classical ground state is the diamond crystal for the widest possible pressure range, subject to certain constraints (e.g., desirable phonon spectra). We also ascertain the ground-state phase diagram for a specific optimized pote...

Puredata is used to demonstrate a exible and e cient approach to one problem in procedural game audio, that of creating footsteps. A model of ground pressure curves from bipedal movement combined with a synthesis layer and mapping of force to frictional excitement emulates the movement of actors on a surface. The speed and weight of the actor, the material composition of the ground and the work...

Water and hydrogen at high pressure make up a substantial fraction of the interiors of giant planets. Using ab initio random structure search methods we investigate the ground-state crystal structures of water, hydrogen, and hydrogen-oxygen compounds. We find that, at pressures beyond 14 Mbar, excess hydrogen is incorporated into the ice phase to form a novel structure with H4O stoichiometry. W...