Show simple item record

dc.contributor.authorTu, Chi-Shun
dc.contributor.authorYeh, Y.-L.
dc.contributor.authorSchmidt, V. Hugo
dc.contributor.authorChien, R.-M.
dc.contributor.authorKatiyar, R.S.
dc.contributor.authorGuo, Ruqian
dc.contributor.authorGuo, Ruyan
dc.contributor.authorBahalla, A.S.
dc.date.accessioned2016-04-18T22:39:41Z
dc.date.available2016-04-18T22:39:41Z
dc.date.issued1997-10-01
dc.identifier.citationC.-S. Tu, Y.-L. Yeh, V.H. Schmidt, R.-M. Chien, R.S. Katiyar, Ruqian Guo, Ruyan Guo, and A.S. Bhalla, “Hypersonic studies and refractive indices of CsTiOAsO4 and KTiOAsO4 single crystals,” Phys. Rev. B 56(13), 7988-7992 (1997).en_US
dc.identifier.issn1098-0121
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/9700
dc.description.abstractThe longitudinal Brillouin backscattering spectra along the [001] phonon direction have been measured as a function of temperature (24-896 °C) for both CsTiOAsO4 (CTA) and KTiOAsO4 (KTA). As the temperature approaches the ferroelectric transition temperature Tc, the acoustic phonon frequencies of both CTA and KTA show a strong softening (which reaches a minimum at Tc∼688°C for CTA). For both CTA and KTA, a broad damping peak was observed and can be attributed to the dynamic order-parameter fluctuations. This anomaly implies that an η2μ-type coupling is the dominant mechanism for the acoustic soft modes in CTA and KTA. Here η is the order parameter and μ is the strain. The refractive indices (nx,ny,nz) and Cauchy’s equations were obtained as a function of wavelength (0.4–1.7 μm) for KTA. The phase matching angles (θ,φ) of second harmonic generation for the fundamental wavelengths of 1.064 (type I) and 1.32 (types I and II) were also calculated.en_US
dc.titleHypersonic studies and refractive indices of CsTiOAsO4 and KTiOAsO4 single crystalsen_US
dc.typeArticleen_US
mus.citation.extentfirstpage7988en_US
mus.citation.extentlastpage7992en_US
mus.citation.issue13en_US
mus.citation.journaltitlePhysical Review Ben_US
mus.citation.volume56en_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.identifier.doi10.1103/PhysRevB.56.7988en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentPhysics.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage2en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record


MSU uses DSpace software, copyright © 2002-2017  Duraspace. For library collections that are not accessible, we are committed to providing reasonable accommodations and timely access to users with disabilities. For assistance, please submit an accessibility request for library material.