Generation and characterization of point defects in SrTiO3 and Y3Al5O12

Generation and characterization of point defects in SrTiO3 and Y3Al5O12

Positron annihilation lifetime spectroscopy (PALS) was applied to characterize point defects in single crystals of Y3Al5O12 and SrTiO3 after populating different types of defects by relevant thermal treatments. In SrTiO3, PALS measurements identified Sr vacancy, Ti vacancy, vacancy complexes of Ti–O...

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Main Authors: F.A. Selim, D. Winarski, C.R. Varney, M.C. Tarun, Jianfeng Ji, M.D. McCluskey
Format: Article
Language:English
Published: Elsevier 2015-01-01
Series:Results in Physics
Subjects:
Complex oxides
Strontium titanate
Garnets
Positron annihilation spectroscopy
IR spectroscopy
Point defects
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379715000030
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spelling doaj-d53e1c2fa07249199058af66199536512020-11-25T01:06:50ZengElsevierResults in Physics2211-37972015-01-015C283110.1016/j.rinp.2015.01.002Generation and characterization of point defects in SrTiO3 and Y3Al5O12F.A. Selim0D. Winarski1C.R. Varney2M.C. Tarun3Jianfeng Ji4M.D. McCluskey5Physics Department, Bowling Green State University, Bowling Green, OH 43403, USAPhysics Department, Bowling Green State University, Bowling Green, OH 43403, USAPhysics Department, Washington State University, Pullman, WA 99164, USAPhysics Department, Washington State University, Pullman, WA 99164, USAPhysics Department, Bowling Green State University, Bowling Green, OH 43403, USAPhysics Department, Washington State University, Pullman, WA 99164, USAPositron annihilation lifetime spectroscopy (PALS) was applied to characterize point defects in single crystals of Y3Al5O12 and SrTiO3 after populating different types of defects by relevant thermal treatments. In SrTiO3, PALS measurements identified Sr vacancy, Ti vacancy, vacancy complexes of Ti–O (vacancy) and hydrogen complex defects. In Y3Al5O12 single crystals the measurements showed the presence of Al-vacancy, (Al–O) vacancy and Al-vacancy passivated by hydrogen. These defects are shown to play the major role in defining the electronic and optical properties of these complex oxides.http://www.sciencedirect.com/science/article/pii/S2211379715000030Complex oxidesStrontium titanateGarnetsPositron annihilation spectroscopyIR spectroscopyPoint defects
collection DOAJ
language English
format Article
sources DOAJ
author F.A. Selim
D. Winarski
C.R. Varney
M.C. Tarun
Jianfeng Ji
M.D. McCluskey
spellingShingle F.A. Selim
D. Winarski
C.R. Varney
M.C. Tarun
Jianfeng Ji
M.D. McCluskey
Generation and characterization of point defects in SrTiO3 and Y3Al5O12
Results in Physics
Complex oxides
Strontium titanate
Garnets
Positron annihilation spectroscopy
IR spectroscopy
Point defects
author_facet F.A. Selim
D. Winarski
C.R. Varney
M.C. Tarun
Jianfeng Ji
M.D. McCluskey
author_sort F.A. Selim
title Generation and characterization of point defects in SrTiO3 and Y3Al5O12
title_short Generation and characterization of point defects in SrTiO3 and Y3Al5O12
title_full Generation and characterization of point defects in SrTiO3 and Y3Al5O12
title_fullStr Generation and characterization of point defects in SrTiO3 and Y3Al5O12
title_full_unstemmed Generation and characterization of point defects in SrTiO3 and Y3Al5O12
title_sort generation and characterization of point defects in srtio3 and y3al5o12
publisher Elsevier
series Results in Physics
issn 2211-3797
publishDate 2015-01-01
description Positron annihilation lifetime spectroscopy (PALS) was applied to characterize point defects in single crystals of Y3Al5O12 and SrTiO3 after populating different types of defects by relevant thermal treatments. In SrTiO3, PALS measurements identified Sr vacancy, Ti vacancy, vacancy complexes of Ti–O (vacancy) and hydrogen complex defects. In Y3Al5O12 single crystals the measurements showed the presence of Al-vacancy, (Al–O) vacancy and Al-vacancy passivated by hydrogen. These defects are shown to play the major role in defining the electronic and optical properties of these complex oxides.
topic Complex oxides
Strontium titanate
Garnets
Positron annihilation spectroscopy
IR spectroscopy
Point defects
url http://www.sciencedirect.com/science/article/pii/S2211379715000030
work_keys_str_mv AT faselim generationandcharacterizationofpointdefectsinsrtio3andy3al5o12
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AT crvarney generationandcharacterizationofpointdefectsinsrtio3andy3al5o12
AT mctarun generationandcharacterizationofpointdefectsinsrtio3andy3al5o12
AT jianfengji generationandcharacterizationofpointdefectsinsrtio3andy3al5o12
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