Low-energy neutron vibrational spectra of high pressure phases of ice

A. I. Kolesnikov; J. C. Li; D. Colognesi

doi:10.1080/10238160601048940

Low-energy neutron vibrational spectra of high pressure phases of ice

A. I. Kolesnikov, J. C. Li, D. Colognesi

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

2 Scopus citations

Abstract

An extra intensity was observed in inelastic neutron scattering spectra at low energy transfers for vapourdeposited amorphous ice and high-density amorphous (hda) ice compared to their crystalline analogues, hexagonal ice-Ih and high-pressure phase ice-VI, respectively. These low-energy excitations (LEE) in the deposited amorphous ice can be mainly described as a Boson peak. The origin of the LEE for the hda ice is not clear; it can be either due to the Boson peak or can originate from a softening of sound waves.

Original language	English
Pages (from-to)	325-331
Number of pages	7
Journal	Journal of Neutron Research
Volume	14
Issue number	4
DOIs	https://doi.org/10.1080/10238160601048940
State	Published - 2006
Externally published	Yes

Keywords

Boson scattering
Ice
Inelastic neutron scattering
Neutron spectrosopy

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10.1080/10238160601048940

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AU - Kolesnikov, A. I.

AU - Li, J. C.

AU - Colognesi, D.

PY - 2006

Y1 - 2006

N2 - An extra intensity was observed in inelastic neutron scattering spectra at low energy transfers for vapourdeposited amorphous ice and high-density amorphous (hda) ice compared to their crystalline analogues, hexagonal ice-Ih and high-pressure phase ice-VI, respectively. These low-energy excitations (LEE) in the deposited amorphous ice can be mainly described as a Boson peak. The origin of the LEE for the hda ice is not clear; it can be either due to the Boson peak or can originate from a softening of sound waves.

AB - An extra intensity was observed in inelastic neutron scattering spectra at low energy transfers for vapourdeposited amorphous ice and high-density amorphous (hda) ice compared to their crystalline analogues, hexagonal ice-Ih and high-pressure phase ice-VI, respectively. These low-energy excitations (LEE) in the deposited amorphous ice can be mainly described as a Boson peak. The origin of the LEE for the hda ice is not clear; it can be either due to the Boson peak or can originate from a softening of sound waves.

KW - Boson scattering

KW - Ice

KW - Inelastic neutron scattering

KW - Neutron spectrosopy

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JO - Journal of Neutron Research

JF - Journal of Neutron Research

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ER -

Low-energy neutron vibrational spectra of high pressure phases of ice

Abstract

Keywords

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