DSpace@Çankaya

Temperature dependence of the damping constant and the relaxation time close to the tetragonal-cubic phase transition in SrZrO3

Basit öğe kaydını göster

dc.contributor.author Yurtseven, H.
dc.contributor.author Kiracı, Ali
dc.date.accessioned 2020-03-19T10:55:47Z
dc.date.available 2020-03-19T10:55:47Z
dc.date.issued 2017-01-15
dc.identifier.citation Yurtseven, H.; Kiracı, A., "Temperature dependence of the damping constant and the relaxation time close to the tetragonal-cubic phase transition in SrZrO3", Journal Of Molecular Structure, Vol.1128, pp.51-56, (2017). tr_TR
dc.identifier.issn 0022-2860
dc.identifier.uri http://hdl.handle.net/20.500.12416/2691
dc.description.abstract The damping constant Gamma(sp) due to the pseudospin-phonon coupling is calculated as a function of temperature using the pseudospin-phonon coupled model and the energy fluctuation model close to the tetragonal-cubic transition (T-C = 1443 K) in SrZrO3. Using the observed Raman frequencies and the linewidth (FWHM) of the soft modes (E-g and A(1g)) from the literature, predictions of both models studied, are examined for the tetragonal-cubic transition in this crystalline system. Values of the activation energy U are extracted and also the inverse relaxation time is predicted as a function of temperature close to the phase transition studied in SrZrO3. Divergence behaviour of the damping constant (FWHM) of the soft modes is predicted from both models as also observed experimentally when T-C is approached from the tetragonal to the cubic phase in SrZrO3. The relaxation time also diverges close to the T-C in this crystal. It is indicated that the tetragonal cubic transition is of a second order as predicted from both models studied here, as also observed experimentally in SrZrO3. tr_TR
dc.language.iso eng tr_TR
dc.publisher Elsevier Science BV tr_TR
dc.relation.isversionof 10.1016/j.molstruc.2016.08.050 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Damping Constant tr_TR
dc.subject Raman Frequency tr_TR
dc.subject Relaxation Time tr_TR
dc.subject Soft Modes tr_TR
dc.subject Tetragonal-Cubic Transition tr_TR
dc.subject SrZrO3 tr_TR
dc.title Temperature dependence of the damping constant and the relaxation time close to the tetragonal-cubic phase transition in SrZrO3 tr_TR
dc.type article tr_TR
dc.relation.journal Journal Of Molecular Structure tr_TR
dc.contributor.authorID 42475 tr_TR
dc.identifier.volume 1128 tr_TR
dc.identifier.startpage 51 tr_TR
dc.identifier.endpage 56 tr_TR
dc.contributor.department Çankaya Üniversitesi, Ortak Dersler Bölümü, Temel Mühendislik ABD Fizik Bilim Dalı tr_TR


Bu öğenin dosyaları:

Dosyalar Boyut Biçim Göster

Bu öğe ile ilişkili dosya yok.

Bu öğe aşağıdaki koleksiyon(lar)da görünmektedir.

Basit öğe kaydını göster