Neutron scattering investigation of the acoustic-mode Grüneisen parameters in RbBr

G. Ernst; G. Krexner; G. Quittner; W. Kress; B. Buras; Bente Lebech

doi:10.1103/PhysRevB.29.5805

Neutron scattering investigation of the acoustic-mode Grüneisen parameters in RbBr

G. Ernst, G. Krexner, G. Quittner, W. Kress, B. Buras, Bente Lebech

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The microscopic Grüneisen parameters in RbBr have been determined for 44 acoustic modes in the main symmetry directions Δ, Σ, and Λ by inelastic neutron scattering under hydrostatic pressure. The experimental data are well described within the framework of a breathing-shell model, which includes third-order anharmonic contributions. The thermal-expansion coefficient has been calculated in the temperature range 0-300 K. The results are in good agreement with the experimental data.

Original language	English
Journal	Physical Review B
Volume	29
Issue number	10
Pages (from-to)	5805-5813
ISSN	2469-9950
DOIs	https://doi.org/10.1103/PhysRevB.29.5805
Publication status	Published - 1984

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@article{e532825bd3584b2581daa5c75f428a06,

title = "Neutron scattering investigation of the acoustic-mode Gr{\"u}neisen parameters in RbBr",

abstract = "The microscopic Gr{\"u}neisen parameters in RbBr have been determined for 44 acoustic modes in the main symmetry directions Δ, Σ, and Λ by inelastic neutron scattering under hydrostatic pressure. The experimental data are well described within the framework of a breathing-shell model, which includes third-order anharmonic contributions. The thermal-expansion coefficient has been calculated in the temperature range 0-300 K. The results are in good agreement with the experimental data.",

author = "G. Ernst and G. Krexner and G. Quittner and W. Kress and B. Buras and Bente Lebech",

year = "1984",

doi = "10.1103/PhysRevB.29.5805",

language = "English",

volume = "29",

pages = "5805--5813",

journal = "Physical Review B (Condensed Matter and Materials Physics)",

issn = "1098-0121",

publisher = "American Physical Society",

number = "10",

}

TY - JOUR

T1 - Neutron scattering investigation of the acoustic-mode Grüneisen parameters in RbBr

AU - Ernst, G.

AU - Krexner, G.

AU - Quittner, G.

AU - Kress, W.

AU - Buras, B.

AU - Lebech, Bente

PY - 1984

Y1 - 1984

N2 - The microscopic Grüneisen parameters in RbBr have been determined for 44 acoustic modes in the main symmetry directions Δ, Σ, and Λ by inelastic neutron scattering under hydrostatic pressure. The experimental data are well described within the framework of a breathing-shell model, which includes third-order anharmonic contributions. The thermal-expansion coefficient has been calculated in the temperature range 0-300 K. The results are in good agreement with the experimental data.

AB - The microscopic Grüneisen parameters in RbBr have been determined for 44 acoustic modes in the main symmetry directions Δ, Σ, and Λ by inelastic neutron scattering under hydrostatic pressure. The experimental data are well described within the framework of a breathing-shell model, which includes third-order anharmonic contributions. The thermal-expansion coefficient has been calculated in the temperature range 0-300 K. The results are in good agreement with the experimental data.

U2 - 10.1103/PhysRevB.29.5805

DO - 10.1103/PhysRevB.29.5805

M3 - Journal article

VL - 29

SP - 5805

EP - 5813

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

SN - 1098-0121

IS - 10

ER -