Behavior of rubidium at over eightfold static compression
C. V. Storm, J. McHardy, S. E. Finnegan, Edward J. Pace, M.G. Stevenson, M. J. Duff, Simon G. MacLeod, M. I. McMahon
Abstract
The behavior and structure of Rb are explored up to 264 GPa, a pressure at which the density is increased more than eightfold. The previously predicted double-hexagonal close packed structure is stable above 200 GPa, while at lower pressures a change in compressibility at 30 GPa arises from $s$-$d$ charge transfer. Above 30 GPa, the authors find that Rb has the regular compression of a $d$-type transition metal.
Topics & Concepts
RubidiumCompressibilityCompression (physics)Materials scienceCondensed matter physicsHexagonal crystal systemCharge (physics)ThermodynamicsClose-packing of equal spheresCrystallographyPhysicsComposite materialChemistryMetallurgyPotassiumQuantum mechanicsHigh-pressure geophysics and materialsSuperconductivity in MgB2 and AlloysAdvanced Chemical Physics Studies