Experimental confirmation of the universal law for the vibrational density of states of liquids

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dc.contributor.authorStamper, Cen_AU
dc.contributor.authorCortie, DLen_AU
dc.contributor.authorYue, ZJen_AU
dc.contributor.authorWang, XLen_AU
dc.contributor.authorYu, DHen_AU
dc.date.accessioned2023-11-08T04:36:52Zen_AU
dc.date.available2023-11-08T04:36:52Zen_AU
dc.date.issued2022-04-02en_AU
dc.date.statistics2023-10-25en_AU
dc.description.abstractAn analytical model describing the vibrational density of states (VDOS) of liquids has long been elusive, owing to the complexities of liquid dynamics. Nevertheless, Zaccone and Baggioli have recently developed such a model which was proposed to be the universal law for the vibrational density of states of liquids. Distinct from the Debye law, g(ω) ∝ ω2, for solids, the universal law for liquids reveals a linear relationship, g(ω) ∝ ω, in the low-energy region. We have confirmed this universal law with experimental VDOS measured by inelastic neutron scattering on real liquid systems including water, liquid metal, and polymer liquids, and have applied this model to extract the effective relaxation rate for the short time dynamics for each liquid. The model has also been further evaluated in the prediction of the specific heat with comparison to existing experimental data as well as with values obtained by different approaches. © 2022 American Chemical Societyen_AU
dc.identifier.citationStamper, C., Cortie, D., Yue, Z., Wang, X., & Yu, D. (2022). Experimental confirmation of the universal law for the vibrational density of states of liquids. The Journal of Physical Chemistry Letters, 13(13), 3105-3111. doi:10.1021/acs.jpclett.2c00297en_AU
dc.identifier.issn1948-7185en_AU
dc.identifier.issue13en_AU
dc.identifier.journaltitleThe Journal of Physical Chemistry Lettersen_AU
dc.identifier.pagination3105-3111en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15182en_AU
dc.identifier.volume13en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.relation.urihttps://doi.org/10.1021/acs.jpclett.2c00297en_AU
dc.subjectBand theoryen_AU
dc.subjectEnergyen_AU
dc.subjectLiquidsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectPhononsen_AU
dc.subjectVibrational statesen_AU
dc.subjectDensityen_AU
dc.titleExperimental confirmation of the universal law for the vibrational density of states of liquidsen_AU
dc.typeJournal Articleen_AU
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