Precise Measurement of Acoustic Phonons in PrFeAsO1-y

Tatsuo Fukuda; Alfred Q.R. Baron; Hiroshi Uchiyama; Hiroki Nakamura; Motoyuki Ishikado; Masahiko Machida; Shin-ich Shamoto

doi:10.18957/rr.3.2.290

Section A

Precise Measurement of Acoustic Phonons in PrFeAsO_1-y

Tatsuo Fukuda, Alfred Q.R. Baron, Hiroshi Uchiyama, Hiroki Nakamura, Motoyuki Ishikado, Masahiko Machida, Shin-ich Shamoto

Author information

Keywords: iron-based superconductor, inelastic x-ray scattering, acoustic phonon, 2011B1122, BL35XU

JOURNAL OPEN ACCESS

2015 Volume 3 Issue 2 Pages 290-293

DOI https://doi.org/10.18957/rr.3.2.290

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Abstract

We investigated acoustic phonons of PrFeAsO_1-y precisely to select between two different models: the in-plane soft and clipped. These predict different contamination of the longitudinal phonon by transverse one. We could reduce the contamination with improved Q resolution, but the data quality was insufficient.Based on Q dependence slightly better agreement was found with the in-plane soft model.

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