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dc.contributor.authorTalwar, Devki N.
dc.contributor.authorYang, Tzuen-Rong
dc.contributor.authorFeng, Zhe Chuan
dc.contributor.authorBecla, Piotr
dc.date.accessioned2012-03-08T19:11:56Z
dc.date.available2012-03-08T19:11:56Z
dc.date.issued2011-11
dc.date.submitted2011-08
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.urihttp://hdl.handle.net/1721.1/69603
dc.description.abstractRoom temperature measurements of the far-infrared (FIR) reflectance spectra are reported for the polar optical phonons in a series of bulk Cd[subscript x]Zn[subscript 1−x]Te (0 ≤ x ≤ 1) and CdSe[subscript x]Te[subscript 1−x] (0 < x ≤ 0.35) crystals grown by Bridgman technique. The composition-dependent spectra exhibited many fundamental aspects of lattice vibrations, while the results of long-wavelength optical modes for the end member binary compounds displayed phonon values in good agreement with the existing inelastic neutron scattering and/or Raman spectroscopy data. Using a standard methodology of multilayer optics with effective-medium dielectric tensors, we simulated the FIR transmission and reflectivity spectra at oblique incidence (Berreman's effect) in many II-VI free-standing thin films, epilayers and superlattices. Berreman's approach provided us with a strong basis for analyzing the infrared experimental data and offered an effective means of estimating the zone-center transverse and longitudinal optical (ω[subscript TO], ω[subscript LO]) phonon frequencies in polar-semiconductor thin films and heterostructure materials of increasing technological importance.en_US
dc.description.sponsorshipIndiana University of Pennsylvania. Graduate School (Innovation Grant)en_US
dc.description.sponsorshipNational Science Council (China) (Grant No. NSC 98-2221-E-002-015-MY3)en_US
dc.description.sponsorshipNational Science Council (China) (Grant No. NSC 98-3114-E-005-002-CC2)en_US
dc.language.isoen_US
dc.publisherAmerican Physical Society (APS)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevB.84.174203en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAPSen_US
dc.titleInfrared reflectance and transmission spectra in II-VI alloys and superlatticesen_US
dc.typeArticleen_US
dc.identifier.citationTalwar, Devki et al. “Infrared Reflectance and Transmission Spectra in II-VI Alloys and Superlattices.” Physical Review B 84.17 (2011): n. pag. Web. 8 Mar. 2012. © 2011 American Physical Societyen_US
dc.contributor.departmentMIT Materials Research Laboratoryen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.approverBecla, Piotr
dc.contributor.mitauthorBecla, Piotr
dc.relation.journalPhysical Review Ben_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsTalwar, Devki; Yang, Tzuen-Rong; Feng, Zhe; Becla, P.en
dc.identifier.orcidhttps://orcid.org/0000-0002-0769-0652
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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