Impact of Strain Engineering on Antiferroelectricity in NaNbO3 Thin Films
被引:2
|
作者:
Schneider, Thorsten
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机构:
Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, GermanyTech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
Schneider, Thorsten
[1
]
Cardoletti, Juliette
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机构:
Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
Luxembourg Inst Sci & Technol LIST, Mat Res & Technol Dept, 41 Rue Brill, L-4422 Belvaux, LuxembourgTech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
Cardoletti, Juliette
[1
,2
]
Komissinskiy, Philipp
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机构:
Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, GermanyTech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
Komissinskiy, Philipp
[1
]
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机构:
Alff, Lambert
[1
]
机构:
[1] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
[2] Luxembourg Inst Sci & Technol LIST, Mat Res & Technol Dept, 41 Rue Brill, L-4422 Belvaux, Luxembourg
来源:
ACS OMEGA
|
2023年
/
8卷
/
26期
关键词:
FERROELECTRICITY;
DENSITY;
AGNBO3;
D O I:
10.1021/acsomega.3c01327
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Thin films of NaNbO3 were grown on varioussubstratesto investigate the effect of epitaxial strain on their structuraland electrical properties. Reciprocal space maps confirmed the presenceof epitaxial strain from +0.8% to -1.2%. A bulk-like antipolarground state was detected via structural characterization for NaNbO3 thin films grown with strains ranging from a compressivestrain of 0.8% to small tensile strains, up to -0.2%. For largertensile strains on the other hand, no indication of antipolar displacementscan be detected, even beyond the relaxation of the film at largerthicknesses. Electrical characterization revealed a ferroelectrichysteresis loop for thin films under a strain of +0.8% to -0.2%,while the films under larger tensile strain showed no out-of-planepolarization component. However, the films with a compressive strainof 0.8% present a saturation polarization of up to 55 & mu;C & BULL;cm(-2), more than twice as large for films grown under conditionswith small strain, which is also larger than the highest values reportedfor bulk materials. Our results indicate the high potential for strainengineering in antiferroelectric materials, as the antipolar groundstate could be retained with compressive strain. The observed enhancementof the saturation polarization by strain allows for substantial increaseof energy density of the capacitors with antiferroelectric materials.
机构:
Cent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, JapanCent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, Japan
Katsumata, Ken-ichi
Cordonier, Christopher E. J.
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Cent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, JapanCent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, Japan
Cordonier, Christopher E. J.
Shichi, Tetsuya
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机构:
Cent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, JapanCent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, Japan
Shichi, Tetsuya
Fujishima, Akira
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机构:
Cent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, JapanCent Japan Railway Co, Technol Res & Dev Dept, Komaki, Aichi 4850801, Japan
机构:
Technology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, JapanTechnology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, Japan
Katsumata, Ken-Ichi
Cordonier, Christopher E. J.
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机构:
Technology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, JapanTechnology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, Japan
Cordonier, Christopher E. J.
Shichi, Tetsuya
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机构:
Technology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, JapanTechnology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, Japan
Shichi, Tetsuya
Fujishima, Akira
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机构:
Technology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, JapanTechnology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801, Japan
Fujishima, Akira
Journal of the American Chemical Society,
2009,
131
(11):
: 3856
-
3857