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Calculation of the frequency shifts and damping constant for the Raman modes (A(1g), B-1) near the tetragonal-cubic transition in SrTiO3

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dc.contributor.author Kiracı, Ali
dc.contributor.author Yurtseven, Hasan Hamit
dc.date.accessioned 2019-12-18T12:03:15Z
dc.date.available 2019-12-18T12:03:15Z
dc.date.issued 2017-01
dc.identifier.citation Kiraci, Ali; Yurtseven, Hasan Hamit (2017). Calculation of the frequency shifts and damping constant for the Raman modes (A(1g), B-1) near the tetragonal-cubic transition in SrTiO3, Turkish Journal Of Physics, 41(6), 526-535. tr_TR
dc.identifier.issn 1300-0101
dc.identifier.uri http://hdl.handle.net/20.500.12416/2176
dc.description.abstract Raman shifts of the soft mode A(1g) and the B-1 mode are calculated at various pressures at room temperature for the cubic-tetragonal transition (P-c = 9.5 GPa) in SrTiO3. This calculation is performed using the observed volume data through the mode Gruneisen parameters of A(1g) and B-1 which vary with pressure, by fitting to the experimental wavenumbers in this crystalline system. Calculated Raman shifts are then used as order parameters to predict the pressure dependence of the damping constant and the inverse relaxation time for the cubic-tetragonal transition in SrTiO3. Our predictions from the pseudospin-phonon coupling and the energy fluctuation models can be compared with the experimental measurements when available in the literature. tr_TR
dc.language.iso eng tr_TR
dc.publisher Scientific Technical Research Council Turkey-Tubitak tr_TR
dc.relation.isversionof 10.3906/fiz-1705-21 tr_TR
dc.rights info:eu-repo/semantics/openAccess tr_TR
dc.subject Raman Wavenumber tr_TR
dc.subject Mode Gruneisen Parameter tr_TR
dc.subject Damping Constant tr_TR
dc.subject Inverse Relaxation Time tr_TR
dc.subject SrTiO3 tr_TR
dc.title Calculation of the frequency shifts and damping constant for the Raman modes (A(1g), B-1) near the tetragonal-cubic transition in SrTiO3 tr_TR
dc.type article tr_TR
dc.relation.journal Turkish Journal Of Physics tr_TR
dc.contributor.authorID 42475 tr_TR
dc.identifier.volume 41 tr_TR
dc.identifier.issue 6 tr_TR
dc.identifier.startpage 526 tr_TR
dc.identifier.endpage 535 tr_TR
dc.contributor.department Çankaya Üniversitesi, Ortak Dersler Bölümü, Temel Mühendislik Ana Bilim Dalı, Fizik Bilim Dalı tr_TR


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