On the origin of the boson peak in a network glass B2O3

D. Engberg; A. Brodin; A. Wischnewski; U. Buchenau; L. Borjesson; A. J. Dianoux; A. P. Sokolov; L. M. Torell

On the origin of the boson peak in a network glass B₂O₃

D. Engberg, A. Brodin, A. Wischnewski, U. Buchenau, L. Borjesson, A. J. Dianoux, A. P. Sokolov, L. M. Torell

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

We report the first comparison of coherent inelastic neutron and depolarized Raman scattering spectra in the energy range 0.5 meV to 10 meV of a network glass B₂O₃. The density of states, deduced from the neutron measurements, is divided into a sound wave-like part and an additional contribution. While both parts contribute to the total density of states, only the additional part seems to contribute to Raman scattering. The results can be understood in terms of the soft potential model.

Original language	English
Title of host publication	Doktorsavhandlingar vid Chalmers Tekniska Hogskola
Publisher	Chalmers Tekniska Hogskola
Pages	1-4
Number of pages	4
Edition	1315
State	Published - 1997
Externally published	Yes

Cite this

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abstract = "We report the first comparison of coherent inelastic neutron and depolarized Raman scattering spectra in the energy range 0.5 meV to 10 meV of a network glass B2O3. The density of states, deduced from the neutron measurements, is divided into a sound wave-like part and an additional contribution. While both parts contribute to the total density of states, only the additional part seems to contribute to Raman scattering. The results can be understood in terms of the soft potential model.",

author = "D. Engberg and A. Brodin and A. Wischnewski and U. Buchenau and L. Borjesson and Dianoux, {A. J.} and Sokolov, {A. P.} and Torell, {L. M.}",

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T1 - On the origin of the boson peak in a network glass B2O3

AU - Engberg, D.

AU - Brodin, A.

AU - Wischnewski, A.

AU - Buchenau, U.

AU - Borjesson, L.

AU - Dianoux, A. J.

AU - Sokolov, A. P.

AU - Torell, L. M.

PY - 1997

Y1 - 1997

N2 - We report the first comparison of coherent inelastic neutron and depolarized Raman scattering spectra in the energy range 0.5 meV to 10 meV of a network glass B2O3. The density of states, deduced from the neutron measurements, is divided into a sound wave-like part and an additional contribution. While both parts contribute to the total density of states, only the additional part seems to contribute to Raman scattering. The results can be understood in terms of the soft potential model.

AB - We report the first comparison of coherent inelastic neutron and depolarized Raman scattering spectra in the energy range 0.5 meV to 10 meV of a network glass B2O3. The density of states, deduced from the neutron measurements, is divided into a sound wave-like part and an additional contribution. While both parts contribute to the total density of states, only the additional part seems to contribute to Raman scattering. The results can be understood in terms of the soft potential model.

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M3 - Chapter

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BT - Doktorsavhandlingar vid Chalmers Tekniska Hogskola

PB - Chalmers Tekniska Hogskola

ER -

On the origin of the boson peak in a network glass B₂O₃

Abstract

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