Raman spectroscopic evidence of a coherent room temperature hybrid structure of BaTiO3 single crystal

Liarokapis, E; Antonakos, A; Kojima, A; Yoshimura, Y

dc.contributor.author	Liarokapis, E	en
dc.contributor.author	Antonakos, A	en
dc.contributor.author	Kojima, A	en
dc.contributor.author	Yoshimura, Y	en
dc.date.accessioned	2014-03-01T01:31:44Z
dc.date.available	2014-03-01T01:31:44Z
dc.date.issued	2009	en
dc.identifier.issn	0587-4246	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19916
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-67651152825&partnerID=40&md5=95097c8d04bfcc228faeafe8c2cfae87	en
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	AC-side	en
dc.subject.other	Cubic crystal	en
dc.subject.other	Dark spots	en
dc.subject.other	Hybrid structure	en
dc.subject.other	Microscopic observations	en
dc.subject.other	Monoclinic lattices	en
dc.subject.other	Optical microscopes	en
dc.subject.other	Raman measurements	en
dc.subject.other	Raman spectra	en
dc.subject.other	Raman spectroscopic	en
dc.subject.other	Raman-active phonon	en
dc.subject.other	Room temperature	en
dc.subject.other	Scattering configuration	en
dc.subject.other	Symmetry reduction	en
dc.subject.other	X-ray studies	en
dc.subject.other	Crystal structure	en
dc.subject.other	Ferroelectric materials	en
dc.subject.other	Raman spectroscopy	en
dc.subject.other	Tools	en
dc.subject.other	Single crystals	en
dc.title	Raman spectroscopic evidence of a coherent room temperature hybrid structure of BaTiO3 single crystal	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Recently, a precession X-ray study has discovered that ferroelectric BaTiO3 single crystals have a coherent hybrid structure that consists of tetragonal and monoclinic lattices that share the (101) face of the tetragonal [11, 12]. Microscopic observations attest that the single crystal has two kinds of stripes (dark and white regions). Raman spectra of all sides of the cubic crystal have been collected at several scattering configurations. Two kinds of domains have been observed by the Raman measurements within the stripes, which are identified as light and dark spots under the optical microscope. The spectra structures and line widths are strongly affected when the laser direction is parallel to the b axes and the polarization parallel to the a- or c-axes of the 90 degrees domain (ac-side). It appears that there is a symmetry reduction and disorder, which affects the Raman active phonons. The results are in agreement with the coexistence of the two (tetragonal and monoclinic) lattices.	en
heal.publisher	POLISH ACAD SCIENCES INST PHYSICS	en
heal.journalName	Acta Physica Polonica A	en
dc.identifier.isi	ISI:000269331300015	en
dc.identifier.volume	116	en
dc.identifier.issue	1	en
dc.identifier.spage	68	en
dc.identifier.epage	71	en