Chemical-bond effect on epitaxial strain in perovskite sodium niobate

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Chemical-bond effect on epitaxial strain in perovskite sodium niobate. / Yao, L.; Inkinen, S.; Pacherova, O.; Jelinek, M.; Van Dijken, S.; Tyunina, M.

In: Physical Chemistry Chemical Physics, Vol. 20, No. 6, 01.01.2018, p. 4263-4268.

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@article{1cfc8610c0d24986a9c000ba99db5f3a,
title = "Chemical-bond effect on epitaxial strain in perovskite sodium niobate",
abstract = "Epitaxial films and heterostructures of perovskite oxides attract tremendous scientific interest because of the unique phenomena therein. Especially important is the epitaxial growth of films subjected to substrate-induced misfit strain. We show here that in contrast to conventional misfit-controlled epitaxy, chemical bonds determine the crystal stability and strain in epitaxial films of sodium niobate on different cubic substrates. Strain relaxation in sodium niobate is independent of misfit magnitude and proceeds through perovskite-specific tilting of oxygen octahedra in addition to common defect formation. The observed structural relaxation evidences a major role of a large internal strain that originates from chemical bonds in the perovskite cell. The effect of chemical bonds on film strain is anticipated to also control the epitaxy of other perovskite oxides and related compounds.",
author = "L. Yao and S. Inkinen and O. Pacherova and M. Jelinek and {Van Dijken}, S. and M. Tyunina",
year = "2018",
month = "1",
day = "1",
doi = "10.1039/c7cp08449h",
language = "English",
volume = "20",
pages = "4263--4268",
journal = "Physical Chemistry Chemical Physics",
issn = "1463-9076",
publisher = "The Royal Society of Chemistry",
number = "6",

}

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TY - JOUR

T1 - Chemical-bond effect on epitaxial strain in perovskite sodium niobate

AU - Yao, L.

AU - Inkinen, S.

AU - Pacherova, O.

AU - Jelinek, M.

AU - Van Dijken, S.

AU - Tyunina, M.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Epitaxial films and heterostructures of perovskite oxides attract tremendous scientific interest because of the unique phenomena therein. Especially important is the epitaxial growth of films subjected to substrate-induced misfit strain. We show here that in contrast to conventional misfit-controlled epitaxy, chemical bonds determine the crystal stability and strain in epitaxial films of sodium niobate on different cubic substrates. Strain relaxation in sodium niobate is independent of misfit magnitude and proceeds through perovskite-specific tilting of oxygen octahedra in addition to common defect formation. The observed structural relaxation evidences a major role of a large internal strain that originates from chemical bonds in the perovskite cell. The effect of chemical bonds on film strain is anticipated to also control the epitaxy of other perovskite oxides and related compounds.

AB - Epitaxial films and heterostructures of perovskite oxides attract tremendous scientific interest because of the unique phenomena therein. Especially important is the epitaxial growth of films subjected to substrate-induced misfit strain. We show here that in contrast to conventional misfit-controlled epitaxy, chemical bonds determine the crystal stability and strain in epitaxial films of sodium niobate on different cubic substrates. Strain relaxation in sodium niobate is independent of misfit magnitude and proceeds through perovskite-specific tilting of oxygen octahedra in addition to common defect formation. The observed structural relaxation evidences a major role of a large internal strain that originates from chemical bonds in the perovskite cell. The effect of chemical bonds on film strain is anticipated to also control the epitaxy of other perovskite oxides and related compounds.

UR - http://www.scopus.com/inward/record.url?scp=85041831220&partnerID=8YFLogxK

U2 - 10.1039/c7cp08449h

DO - 10.1039/c7cp08449h

M3 - Article

VL - 20

SP - 4263

EP - 4268

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

SN - 1463-9076

IS - 6

ER -

ID: 29204073