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Energy dependence of radioluminescence spectra from strontium titanate

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Finch_2015_JoL_Energy_AM.pdf (1.096Mb)
Date
10/2015
Author
Wang, Y.
Zhao, Y.
Zhang, Z.
Zhao, C.
Wu, X.
Finch, A.A.
Townsend, P.D.
Funder
NERC
Grant ID
NE/H002715/1
Keywords
X-ray energy dependence
Radioluminescence
SrTiO3
Low temperature phase changes
GB Physical geography
QC Physics
NDAS
Metadata
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Abstract
Abstract X-ray excited luminescence spectra of strontium titanate are reported over the temperature range from 20-300 K. The range includes several crystalline phases, each with different emission spectra. The signals are thermally quenched above ~220 K. There are spectral shifts and intensity changes around the temperatures associated with phase changes and overall there are nominally three spectral emission bands. A remarkable observation is that at fixed lower temperatures the spectra undergo major changes with the energy of the X-rays. A possible cause of the effect is discussed in terms of inner shell excitation from the K shell of the strontium. Comparisons with thermoluminescence spectra from the strontium titanate are reported.
Citation
Wang , Y , Zhao , Y , Zhang , Z , Zhao , C , Wu , X , Finch , A A & Townsend , P D 2015 , ' Energy dependence of radioluminescence spectra from strontium titanate ' , Journal of Luminescence , vol. 166 , pp. 17-21 . https://doi.org/10.1016/j.jlumin.2015.04.046
Publication
Journal of Luminescence
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.jlumin.2015.04.046
ISSN
0022-2313
Type
Journal article
Rights
Copyright © 2015 Published by Elsevier B.V. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://dx.doi.org/10.1016/j.jlumin.2015.04.046
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8750

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