Imperial College London
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ProfessorRogerWhatmore

Faculty of Engineering, Department of Materials

Visiting Professor
 
 
 
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Contact

 

r.whatmore

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Peters:2019:10.1002/adma.201806498,
author = {Peters, JJP and Sanchez, AM and Walker, D and Whatmore, R and Beanland, R},
doi = {10.1002/adma.201806498},
journal = {Advanced Materials},
title = {Quantitative high-dynamic-range electron diffraction of polar nanodomains in Pb2ScTaO6},
url = {http://dx.doi.org/10.1002/adma.201806498},
volume = {31},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Highly Bsite ordered Pb2ScTaO6 crystals are studied as a function of temperature via dielectric spectroscopy and in situ highdynamicrange electron diffraction. The degree of ordering is examined on the local and macroscopic scale and is determined to be 76%. Novel analysis of the electron diffraction patterns provides structural information with two types of antiferroelectric displacements determined to be present in the polar structure. It is then found that a lowtemperature transition occurs on cooling at ≈210 K that is not present on heating. This phenomenon is discussed in terms of the freezing of dynamic polar nanodomains where a high density of domain walls creates a metastable state.
AU  - Peters,JJP
AU  - Sanchez,AM
AU  - Walker,D
AU  - Whatmore,R
AU  - Beanland,R
DO  - 10.1002/adma.201806498
PY  - 2019///
SN  - 0935-9648
TI  - Quantitative high-dynamic-range electron diffraction of polar nanodomains in Pb2ScTaO6
T2  - Advanced Materials
UR  - http://dx.doi.org/10.1002/adma.201806498
UR  - http://hdl.handle.net/10044/1/66002
VL  - 31
ER  -
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