Accurate Charge Density Study of Aluminum from Synchrotron X-ray Powder Diffraction

Abstract

粉末 X 線回折による精密構造解析 Tomoaki SASAKI, Yuka DEGUCHI, Hidetaka KASAI and Eiji NISHIBORI: Accurate Charge Density Study of Aluminum from Synchrotron X-ray Powder Diffraction X-ray charge density is one of the most information rich observables in natural science. We have developed the diffractometers and measurement techniques for X-ray charge density study at one of the third generation synchrotron radiation source SPring-8. Very small amounts of aspherical electron distribution of a pure metal aluminum were observed in the static deformation density. A signal to noise ratio of high temperature powder diffraction data was improved by the data correction based on Fourier analysis.