Neutron scattering study and lattice dynamical simulation of clathrate H2O+He

S. L. Dong; A. I. Kolesnikov; J. C. Li

doi:10.1016/S0921-4526(98)01242-3

Neutron scattering study and lattice dynamical simulation of clathrate H₂O+He

S. L. Dong, A. I. Kolesnikov, J. C. Li

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

14 Scopus citations

Abstract

The vibrational dynamics of clathrate hydrate H₂O+He formed under pressure of He gas at 3.6 kbar was studied in situ using an inelastic neutron scattering technique. The comparison of the measured spectrum with that of ice II obtained previously in similar conditions showed that the two spectra are almost identical in both translational and librational regions. Based on the lattice dynamical model for ice II the clathrate hydrate spectrum was calculated by introducing an additional Van der Waals interaction between the water molecule and the helium atom. Results indicate that the interaction between water and guest molecules is too weak to affect the vibrational dynamics of ice II host lattice.

Original language	English
Pages (from-to)	429-431
Number of pages	3
Journal	Physica B: Physics of Condensed Matter
Volume	263-264
DOIs	https://doi.org/10.1016/S0921-4526(98)01242-3
State	Published - Mar 1999
Externally published	Yes
Event	Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98 - Lancaster, Great Britain Duration: Jul 26 1998 → Jul 31 1998

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10.1016/S0921-4526(98)01242-3

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title = "Neutron scattering study and lattice dynamical simulation of clathrate H2O+He",

abstract = "The vibrational dynamics of clathrate hydrate H2O+He formed under pressure of He gas at 3.6 kbar was studied in situ using an inelastic neutron scattering technique. The comparison of the measured spectrum with that of ice II obtained previously in similar conditions showed that the two spectra are almost identical in both translational and librational regions. Based on the lattice dynamical model for ice II the clathrate hydrate spectrum was calculated by introducing an additional Van der Waals interaction between the water molecule and the helium atom. Results indicate that the interaction between water and guest molecules is too weak to affect the vibrational dynamics of ice II host lattice.",

author = "Dong, {S. L.} and Kolesnikov, {A. I.} and Li, {J. C.}",

year = "1999",

month = mar,

doi = "10.1016/S0921-4526(98)01242-3",

language = "English",

volume = "263-264",

pages = "429--431",

journal = "Physica B: Physics of Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

note = "Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98 ; Conference date: 26-07-1998 Through 31-07-1998",

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TY - JOUR

T1 - Neutron scattering study and lattice dynamical simulation of clathrate H2O+He

AU - Dong, S. L.

AU - Kolesnikov, A. I.

AU - Li, J. C.

PY - 1999/3

Y1 - 1999/3

N2 - The vibrational dynamics of clathrate hydrate H2O+He formed under pressure of He gas at 3.6 kbar was studied in situ using an inelastic neutron scattering technique. The comparison of the measured spectrum with that of ice II obtained previously in similar conditions showed that the two spectra are almost identical in both translational and librational regions. Based on the lattice dynamical model for ice II the clathrate hydrate spectrum was calculated by introducing an additional Van der Waals interaction between the water molecule and the helium atom. Results indicate that the interaction between water and guest molecules is too weak to affect the vibrational dynamics of ice II host lattice.

AB - The vibrational dynamics of clathrate hydrate H2O+He formed under pressure of He gas at 3.6 kbar was studied in situ using an inelastic neutron scattering technique. The comparison of the measured spectrum with that of ice II obtained previously in similar conditions showed that the two spectra are almost identical in both translational and librational regions. Based on the lattice dynamical model for ice II the clathrate hydrate spectrum was calculated by introducing an additional Van der Waals interaction between the water molecule and the helium atom. Results indicate that the interaction between water and guest molecules is too weak to affect the vibrational dynamics of ice II host lattice.

UR - http://www.scopus.com/inward/record.url?scp=0032658401&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(98)01242-3

DO - 10.1016/S0921-4526(98)01242-3

M3 - Conference article

AN - SCOPUS:0032658401

SN - 0921-4526

VL - 263-264

SP - 429

EP - 431

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

T2 - Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98

Y2 - 26 July 1998 through 31 July 1998

ER -

Neutron scattering study and lattice dynamical simulation of clathrate H₂O+He

Abstract

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