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Dielectric response of soft mode in ferroelectric SrTiO3

dc.contributor.authorHan, Jiaguang
dc.contributor.authorWan, Fan
dc.contributor.authorZhu, Zhiyuan
dc.contributor.authorZhang, Weili
dc.date.accessioned2018-09-21T17:51:25Z
dc.date.available2018-09-21T17:51:25Z
dc.date.issued2007-01-16
dc.identifieroksd_han_dielectricrespo_2007
dc.identifier.citationHan, J., Wan, F., Zhu, Z., & Zhang, W. (2007). Dielectric response of soft mode in ferroelectric SrTiO3. Applied Physics Letters, 90(3), Article 031104. https://doi.org/10.1063/1.2431448
dc.identifier.urihttps://hdl.handle.net/11244/301741
dc.description.abstractThe authors report far-infrared dielectric properties of powder form ferroelectric SrTiO3. Terahertz time-domain spectroscopy (TDS) measurement reveals that the low-frequency dielectric response of SrTiO3 is a consequence of the lowest transverse optical (TO) soft mode TO1 at 2.70THz (90.0 cm-1), which is directly verified by Raman spectroscopy. This result provides a better understanding of the relation of low-frequency dielectric function with the optical phonon soft mode for ferroelectric materials. Combining terahertz TDS with Raman spectra, the overall low-frequency optical phonon response of SrTiO3 is presented in an extended spectral range from 6.7 to1000.0 cm-1.
dc.formatapplication/pdf
dc.languageen_US
dc.publisherAIP Publishing
dc.rightsThis material has been previously published. In the Oklahoma State University Library's institutional repository this version is made available through the open access principles and the terms of agreement/consent between the author(s) and the publisher. The permission policy on the use, reproduction or distribution of the material falls under fair use for educational, scholarship, and research purposes. Contact Digital Resources and Discovery Services at lib-dls@okstate.edu or 405-744-9161 for further information.
dc.titleDielectric response of soft mode in ferroelectric SrTiO3
osu.filenameoksd_han_dielectricrespo_2007.pdf
dc.description.peerreviewPeer reviewed
dc.identifier.doi10.1063/1.2431448
dc.description.departmentElectrical and Computer Engineering
dc.type.genreArticle
dc.type.materialText
dc.subject.keywordsstrontium compounds
dc.subject.keywordsferroelectric materials
dc.subject.keywordssoft modes
dc.subject.keywordsinfrared spectra
dc.subject.keywordsraman spectra
dc.subject.keywordsdielectric function
dc.subject.keywordsphonons
dc.subject.keywordspowders


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