Lattice dynamics of LaFeAsO1-xFx and PrFeAsO 1-y via inelastic X-ray scattering and first-principles calculation

Tatsuo Fukuda, Alfred Q.R. Baron, Shin Ichi Shamoto, Motoyuki Ishikado, Hiroki Nakamura, Masahiko Machida, Hiroshi Uchiyama, Satoshi Tsutsui, Akira Iyo, Hijiri Kito, Jui'Ichiro Mizuki, Masatoshi Arai, Hiroshi Eisaki, Hideo Hosono

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44 引文 斯高帕斯(Scopus)

摘要

The lattice dynamics of LaFeAsO1-xFx (x = 0, 0.1) and PrFeAsO1-y (y ∼ 0:1) are investigated using inelastic x-ray scattering and ab-initio calculation. Measurements of powder samples provide an approximation to the phonon DOS, while dispersion is measured from a single crystal of PrFeAsO1-y. A model that agrees reasonably well with all of the data at room temperature is built from results of abinitio calculations by reducing the strength of the Fe-As bond by 30%.

原文English
文章編號103715
期刊Journal of the Physical Society of Japan
77
發行號10
DOIs
出版狀態Published - 2008 10月

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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