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Structure determination and compositional modification of body-centered tetragonal PX-phase lead titanate

SYSNO ASEP	0365288
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Structure determination and compositional modification of body-centered tetragonal PX-phase lead titanate
Author(s)	Wang, J. (CH) Schenk, K. (CH) Carvalho, A. (CH) Wylie-van Eerd, B. (NZ) Trodahl, J. (NZ) Sandu, C.S. (CH) Bonin, M. (CH) Gregora, Ivan (FZU-D)_{RID, ORCID} He, Z. (CH) Yamada, T. (JP) Funakubo, H. (JP) Briddon, P.R. (GB) Setter, N. (CH)
Source Title	Chemistry of Materials. - : American Chemical Society - ISSN 0897-4756 Roč. 23, č. 10 (2011), s. 2529-2535
Number of pages	7 s.
Language	eng - English
Country	US - United States
Keywords	lead titanate ; fibrous PX phase ; structure determination ; open channels ; Raman scattering
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	KAN301370701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z10100520 - FZU-D (2005-2011)
UT WOS	000290594700006
DOI	10.1021/cm1030206
Annotation	Fibrous PX-phase of lead titanate was studied to clarify its structural aspects. Combining X-ray diffraction and electron microscope analysis with a first-principles calculation, a unique open channel wire-like structure with a 5.53 A is determined. PX-phase structture was shown to have a wide indirect gap. Frequency and symmetry of Raman-active lattice vibration modes have been identified in polarized Raman spectra and a good match with calculations was found. Doping with Zr of the PX-phase PT was also investigated, showing a limit of 17% incorporation.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2012

Number of the records: 1