A comparative analysis of lattice dynamic peculiarities in barium titanate structures via Raman spectroscopy

2020 ◽  
Author(s):  
O. A. Maslova ◽  
Y. I. Yuzyuk ◽  
A. Kumar ◽  
N. Ortega ◽  
R. Katiyar ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Comparative Analysis ◽  
Barium Titanate ◽  
Lattice Dynamic

scholarly journals A Comparative Analysis of Asymmetric (BaTiO3) 1−xΛ/(BaZrO3)xΛ Superlattices via X-Ray Diffraction and Raman Spectroscopy

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
O. A. Maslova ◽  
Yu. I. Yuzyuk ◽  
S. A. Barannikova
Keyword(s):  
Raman Spectroscopy ◽  
Comparative Analysis ◽  
Pulsed Laser ◽  
Lattice Parameter ◽  
Lattice Dynamic ◽  
Laser Deposition ◽  
X Ray Diffraction ◽  
Parameter Mismatch ◽  
X Ray ◽  
Out Of Plane

This work is aimed at studying asymmetric BaTiO31 − xΛ/BaZrO3xΛ ((BT) 1−xΛ/(BZ)xΛ) superlattices, grown by pulsed laser deposition onto (001) MgO substrates. The thicknesses of BT (ferroelectric) and BZ (paraelectric) layers were varied so that х ranged from 0 to 1 at a modulation period Λ of about 80 Å. The films were 400 nm thick. The out-of-plane lattice parameters of constituents were assessed using X-ray diffraction. The lattice dynamic peculiarities of superlattices were probed via Raman spectroscopy; special attention is paid to the analysis of E(1TO) and A1(2TO) ferroelectric soft modes. A comparative analysis of data acquired via both experimental techniques reveals the enhancement of stress between BT and BZ layers with a decrease in symmetry from the tetragonal to a monoclinic phase due to strains induced by the lattice parameter mismatch between the constituents.

Investigation of the structure of barium titanate thin films by Raman spectroscopy

1994 ◽  
Vol 76 (11) ◽  
pp. 7487-7498 ◽  
Author(s):  
Lawrence H. Robins ◽  
Debra L. Kaiser ◽  
Lawrence D. Rotter ◽  
Peter K. Schenck ◽  
Gregory T. Stauf ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Barium Titanate

High-temperature Raman spectroscopy and quasi-harmonic lattice dynamic simulation of diopside

1997 ◽  
Vol 24 (6) ◽  
pp. 440-446 ◽  
Author(s):  
Varghese Swamy ◽  
Leonid S. Dubrovinsky ◽  
Masanori Matsui
Keyword(s):  
Raman Spectroscopy ◽  
High Temperature ◽  
Dynamic Simulation ◽  
Lattice Dynamic

scholarly journals Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy

2009 ◽  
Vol 115 (4) ◽  
pp. 808-810 ◽  
Author(s):  
Z. Lazarević ◽  
N. Romčević ◽  
M. Vijatović ◽  
N. Paunović ◽  
M. Romčević ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Barium Titanate ◽  
Ceramic Powders ◽  
Barium Titanate Ceramic ◽  
Titanate Ceramic

Volatile Components in Cordierite and Coexisting Tourmaline and Quartz from Pegmatites of the Kuhilal Deposit (Pamir, Tajikistan)

2021 ◽  
Vol 62 (10) ◽  
pp. 1157-1174
Author(s):  
K.I. Zatolokina ◽  
A.A. Tomilenko ◽  
T.A. Bul’bak ◽  
G.G. Lepezin
Keyword(s):  
Mass Spectrometry ◽  
Carbon Dioxide ◽  
Gas Chromatography ◽  
Raman Spectroscopy ◽  
Comparative Analysis ◽  
Component Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Capillary Gc ◽  
Ir And Raman

Abstract —The compositions of volatile components in cordierite, tourmaline, and quartz from pegmatites of the Kuhilal deposit were studied by pyrolysis-free gas chromatography–mass spectrometry (GC–MS), IR and Raman spectroscopy, and microthermometry, and their comparative analysis was performed. Capillary GC–MS was applied to determine the component composition and relative contents (rel.%) of volatiles from different zones of crystals and fractions of cordierite. It has been established that water and carbon dioxide prevail among them. Among hydrocarbons, aliphatic, cyclic, and oxygenated ones are predominant. Heterocyclic, nitrogenated, and sulfonated compounds have also been found. In tourmaline and quartz, volatile components are present in gas–liquid inclusions; in cordierites, they are localized both in structural cavities and in nonstructural positions.

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