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dc.contributor.authorHikita, T.
dc.contributor.authorSchnackenberg, P. T.
dc.contributor.authorSchmidt, V. Hugo
dc.identifier.citationT. Hikita, P. Schnackenberg, and V.H. Schmidt, “Brillouin scattering study of the ferroelectric phase transition in tris-sarcosine calcium chloride,� Phys. Rev. B 31, 299-303 (1985)en_US
dc.description.abstractBrillouin spectra from longitudinal phonons in ferroelectric tris-sarcosine calcium chloride propagating along [100], [010], and [001] have been measured as functions of temperature. Large anomalies were found in the Brillouin shift and linewidth in the [100] and [001] phonons. These anomalies are interpreted as arising from the linear coupling of the polarization and the phonons. From the temperature where the linewidth is maximum, the relaxation time of the polarization fluctuations is estimated to be τ=3.1×10−12/(Tc-T) sec, where Tc is the ferroelectric transition temperature. We also observed anomalies in Brillouin shift and linewidth of the [010] phonons which propagate along the ferroelectric b axis. These anomalies are interpreted as coming from electro- strictive coupling. The energy-relaxation time was estimated to be τE=2.5×10−10/(T-Tc) sec in the paraelectric phase and τE=1.0×10−9/(Tc-T) sec in the ferroelectric phase, by comparing our Brillouin results with those of the ultrasonic measurements.en_US
dc.subjectMaterials scienceen_US
dc.subjectLow temperature physicsen_US
dc.subjectHigh temperature physicsen_US
dc.titleBrillouin scattering study of the ferroelectric phase transition in tris-sarcosine calcium chlorideen_US
mus.citation.journaltitlePhysical Review Ben_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.relation.collegeCollege of Letters & Science
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.universityMontana State University - Bozemanen_US

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