title: The measurement of differential EXAFS modulated by high pressure.
abstract: Differential EXAFS (DiffEXAFS) is able to detect subtle atomic perturbations in the local area of the absorbing atom. Here a new method of performing DiffEXAFS experiments under the modulation of high pressure has been developed. Periodic pressure was achieved in the gasket with the help of a dynamic diamond anvil cell, and the measurements were conducted in common energy-scanning mode. This technique has been utilized on ZnSe at 4.8 GPa. The present results have demonstrated a good agreement with the equation of state of ZnSe, and revealed sensitivity to atomic displacements of one order higher in magnitude than that of conventional EXAFS.
authors.affiliation: Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China.
authors.forename: Shengqi
authors.initials: S
authors.lastname: Chu
authors.forename: Lirong
authors.initials: L
authors.lastname: Zheng
authors.forename: Yingli
authors.initials: Y
authors.lastname: Zhou
authors.forename: Aiyu
authors.initials: A
authors.lastname: Zhou
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Rongzheng
authors.initials: R
authors.lastname: Che
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.forename: Tiandou
authors.initials: T
authors.lastname: Hu