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

doi:10.1143/JPSJ.77.103715

Lattice dynamics of LaFeAsO_1-xF_x 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

Department of Physics

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

The lattice dynamics of LaFeAsO_1-xF_x (x = 0, 0.1) and PrFeAsO_1-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 PrFeAsO_1-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%.

Original language	English
Article number	103715
Journal	Journal of the Physical Society of Japan
Volume	77
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.77.103715
Publication status	Published - 2008 Oct

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1143/JPSJ.77.103715

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Fukuda, T., Baron, A. Q. R., Shamoto, S. I., Ishikado, M., Nakamura, H., Machida, M., Uchiyama, H., Tsutsui, S., Iyo, A., Kito, H., Mizuki, JI., Arai, M., Eisaki, H., & Hosono, H. (2008). Lattice dynamics of LaFeAsO_1-xF_x and PrFeAsO _1-y via inelastic X-ray scattering and first-principles calculation. Journal of the Physical Society of Japan, 77(10), Article 103715. https://doi.org/10.1143/JPSJ.77.103715

@article{3b4bb2e75b6f47c9a62365fad7b81aef,

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

abstract = "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%.",

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

year = "2008",

month = oct,

doi = "10.1143/JPSJ.77.103715",

language = "English",

volume = "77",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "10",

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Fukuda, T, Baron, AQR, Shamoto, SI, Ishikado, M, Nakamura, H, Machida, M, Uchiyama, H, Tsutsui, S, Iyo, A, Kito, H, Mizuki, JI, Arai, M, Eisaki, H & Hosono, H 2008, 'Lattice dynamics of LaFeAsO_1-xF_x and PrFeAsO _1-y via inelastic X-ray scattering and first-principles calculation', Journal of the Physical Society of Japan, vol. 77, no. 10, 103715. https://doi.org/10.1143/JPSJ.77.103715

TY - JOUR

T1 - Lattice dynamics of LaFeAsO1-xFx and PrFeAsO 1-y via inelastic X-ray scattering and first-principles calculation

AU - Fukuda, Tatsuo

AU - Baron, Alfred Q.R.

AU - Shamoto, Shin Ichi

AU - Ishikado, Motoyuki

AU - Nakamura, Hiroki

AU - Machida, Masahiko

AU - Uchiyama, Hiroshi

AU - Tsutsui, Satoshi

AU - Iyo, Akira

AU - Kito, Hijiri

AU - Mizuki, Jui'Ichiro

AU - Arai, Masatoshi

AU - Eisaki, Hiroshi

AU - Hosono, Hideo

PY - 2008/10

Y1 - 2008/10

N2 - 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%.

AB - 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%.

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DO - 10.1143/JPSJ.77.103715

M3 - Article

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SN - 0031-9015

VL - 77

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 10

M1 - 103715

ER -

Lattice dynamics of LaFeAsO_1-xF_x and PrFeAsO _1-y via inelastic X-ray scattering and first-principles calculation

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