title: Application of a new composite cubic-boron nitride gasket assembly for high pressure inelastic x-ray scattering studies of carbon related materials.
abstract: We have developed a new composite cubic-boron nitride (c-BN) gasket assembly for high pressure diamond anvil cell studies, and applied it to inelastic x-ray scattering (IXS) studies of carbon related materials in order to maintain a larger sample thickness and avoid the interference from the diamond anvils. The gap size between the two diamond anvils remained ~80 μm at 48.0 GPa with this new composite c-BN gasket assembly. The sample can be located at the center of the gap, ~20 μm away from the surface of both diamond anvils, which provides ample distance to separate the sample signal from the diamond anvils. The high pressure IXS of a solvated C(60) sample was studied up to 48 GPa, and a pressure induced bonding transition from sp(2) to sp(3) was observed at 27 GPa.
authors.affiliation: HPSynC, Geophysical Laboratory, Carnegie Institution of Washington, 9700 South Cass Avenue, Argonne, Illinois 60439, USA. lwang@ciw.edu
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.forename: Wenge
authors.initials: W
authors.lastname: Yang
authors.forename: Yuming
authors.initials: Y
authors.lastname: Xiao
authors.forename: Bingbing
authors.initials: B
authors.lastname: Liu
authors.forename: Paul
authors.initials: P
authors.lastname: Chow
authors.forename: Guoyin
authors.initials: G
authors.lastname: Shen
authors.forename: Wendy L
authors.initials: WL
authors.lastname: Mao
authors.forename: Ho-kwang
authors.initials: HK
authors.lastname: Mao