Far-infrared investigation of the generalized Lyddane-Sachs-Teller relation using ZnS-diamond

Title:
Far-infrared investigation of the generalized Lyddane-Sachs-Teller relation using ZnS-diamond
Authors:
FitzGerald, Stephen; Noh, T. W.; Sievers, A. J.; Xue, L. A.; Tzou, Y.
Abstract:
The optical properties of hot-pressed ZnS-diamond composites have been investigated in the far ir, where the wavelength is much larger than the particle size. A Kramers-Kronig analysis of the measured reflectivity in this vibrational spectral region was used to determine the dielectric function of samples with diamond volume fill fractions f as large as 55%. From these results the f dependences of two experimental quantities are determined: the ratio of the second moments of the longitudinal and transverse energy-loss functions and the ratio of the dc and high-frequency dielectric constants. Agreement with the predictions of the generalized Lyddane-Sachs-Teller relation is obtained over the entire fill-fraction range. We also find that the experimental results are compatible with those obtained within the Bruggeman effective-medium approximation.
Citation:
FitzGerald, S.A., T.W. Noh, A.J. Sievers, L.A. Xue, and Y. Tzou. 1990. "Far-infrared investigation of the generalized Lyddane-Sachs-Teller relation using ZnS-diamond composites." Physical Review B 42(9): 5469-5475.
Publisher:
American Physical Society
DATE ISSUED:
1990-09-15
Department:
Physics and Astronomy
Type:
article
PUBLISHED VERSION:
10.1103/PhysRevB.42.5469
PERMANENT LINK:
http://hdl.handle.net/11282/310429

Full metadata record

DC FieldValue Language
dc.contributor.authorFitzGerald, Stephenen_US
dc.contributor.authorNoh, T. W.en_US
dc.contributor.authorSievers, A. J.en_US
dc.contributor.authorXue, L. A.en_US
dc.contributor.authorTzou, Y.en_US
dc.date.accessioned2013-12-23T16:32:54Zen
dc.date.available2013-12-23T16:32:54Zen
dc.date.issued1990-09-15en
dc.identifier.citationFitzGerald, S.A., T.W. Noh, A.J. Sievers, L.A. Xue, and Y. Tzou. 1990. "Far-infrared investigation of the generalized Lyddane-Sachs-Teller relation using ZnS-diamond composites." Physical Review B 42(9): 5469-5475.en_US
dc.identifier.issn0163-1829en_US
dc.identifier.urihttp://hdl.handle.net/11282/310429en
dc.description.abstractThe optical properties of hot-pressed ZnS-diamond composites have been investigated in the far ir, where the wavelength is much larger than the particle size. A Kramers-Kronig analysis of the measured reflectivity in this vibrational spectral region was used to determine the dielectric function of samples with diamond volume fill fractions f as large as 55%. From these results the f dependences of two experimental quantities are determined: the ratio of the second moments of the longitudinal and transverse energy-loss functions and the ratio of the dc and high-frequency dielectric constants. Agreement with the predictions of the generalized Lyddane-Sachs-Teller relation is obtained over the entire fill-fraction range. We also find that the experimental results are compatible with those obtained within the Bruggeman effective-medium approximation.en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.identifier.doi10.1103/PhysRevB.42.5469en
dc.subject.departmentPhysics and Astronomyen_US
dc.titleFar-infrared investigation of the generalized Lyddane-Sachs-Teller relation using ZnS-diamonden_US
dc.typearticleen_US
dc.identifier.journalPhysical Review Ben_US
dc.identifier.volume42en_US
dc.identifier.issue9en_US
dc.identifier.startpage5469en_US
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