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Local structure of the B-site in BNT-xBT investigated by 47,49Ti NMR: Effect of barium content

Groszewicz, Pedro B. and Breitzke, H. and Jo, Wook and Rödel, Jürgen and Buntkowsky, G. (2017):
Local structure of the B-site in BNT-xBT investigated by 47,49Ti NMR: Effect of barium content.
In: Journal of Applied Physics, AIP Publishing, (121), ISSN 00218979,
[Article]

Abstract

Towards a deeper understanding of the local structure of the B-site in (100-x)(Bi1/2Na1/2)TiO3-xBaTiO3 (BNT-xBT) with 0<x<15, solid-state nuclear magnetic resonance (NMR) spectra of the titanium isotopes 47Ti and 49Ti were investigated. The 47,49Ti NMR spectra of BNT-xBT indicate a disordered local structure for the B-site of these perovskites. The line-shape of the titanium NMR spectra of BNT-xBT samples is found to be independent on the barium content. This fact implies that the local structure of the B-site remains invariant with respect to the structural changes that result from the chemical modification with barium. The analysis of 47,49Ti NMR spectra supports the hypothesis that the main structural changes across the morphotropic phase boundary in these solid-solutions are constrained to the A-site and are related to the tilting of rigid oxygen octahedra. Published by AIP Publishing.

Item Type: Article
Erschienen: 2017
Creators: Groszewicz, Pedro B. and Breitzke, H. and Jo, Wook and Rödel, Jürgen and Buntkowsky, G.
Title: Local structure of the B-site in BNT-xBT investigated by 47,49Ti NMR: Effect of barium content
Language: English
Abstract:

Towards a deeper understanding of the local structure of the B-site in (100-x)(Bi1/2Na1/2)TiO3-xBaTiO3 (BNT-xBT) with 0<x<15, solid-state nuclear magnetic resonance (NMR) spectra of the titanium isotopes 47Ti and 49Ti were investigated. The 47,49Ti NMR spectra of BNT-xBT indicate a disordered local structure for the B-site of these perovskites. The line-shape of the titanium NMR spectra of BNT-xBT samples is found to be independent on the barium content. This fact implies that the local structure of the B-site remains invariant with respect to the structural changes that result from the chemical modification with barium. The analysis of 47,49Ti NMR spectra supports the hypothesis that the main structural changes across the morphotropic phase boundary in these solid-solutions are constrained to the A-site and are related to the tilting of rigid oxygen octahedra. Published by AIP Publishing.

Journal or Publication Title: Journal of Applied Physics
Number: 121
Publisher: AIP Publishing
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B9: Characterization of Structure-Property-Relationships of electrical Functional Materials with Solid State-NMR
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 22 Mar 2017 08:14
Identification Number: doi:10.1063/1.4978017
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