Interband transitions in epitaxial ferroelectric films of NaNbO3

Tyunina, M.; Chvostova, D.; Yao, L. D.; Dejneka, A.; Kocourek, T.; Jelinek, M.; van Dijken, S.

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dc.contributor	Aalto-yliopisto	fi
dc.contributor	Aalto University	en
dc.contributor.author	Tyunina, M.
dc.contributor.author	Chvostova, D.
dc.contributor.author	Yao, L. D.
dc.contributor.author	Dejneka, A.
dc.contributor.author	Kocourek, T.
dc.contributor.author	Jelinek, M.
dc.contributor.author	van Dijken, S.
dc.date.accessioned	2016-04-15T09:01:12Z
dc.date.available	2016-04-15T09:01:12Z
dc.date.issued	2015
dc.identifier.citation	Tyunina, M. & Chvostova, D. & Yao, L. D. & Dejneka, A. & Kocourek, T. & Jelinek, M. & van Dijken, S.. 2015. Interband transitions in epitaxial ferroelectric films of NaNbO3. Physical Review B. Volume 92, Issue 10. 104101/1-6. 2469-9950 (printed). DOI: 10.1103/physrevb.92.104101.	en
dc.identifier.issn	2469-9950 (printed)
dc.identifier.uri	https://aaltodoc.aalto.fi/handle/123456789/20116
dc.description.abstract	The interband optical transitions in cube-on-cube-type epitaxial ferroelectric NaNbO3 thin films and a reference antiferroelectric NaNbO3 crystal are studied in the spectral range of 0.74–9 eV using variable-angle spectroscopic ellipsometry. The energies and the types of the transitions in the films are found to differ significantly from those in the crystal and to vary with epitaxial strain. The results are discussed in terms of epitaxial effects, including higher crystal symmetry, anisotropic lattice strain, and ferroelectric polarization in the NaNbO3 films compared to the crystal.	en
dc.format.extent	104101/1-6
dc.format.mimetype	application/pdf	en
dc.language.iso	en	en
dc.publisher	American Physical Society (APS)	en
dc.relation.ispartofseries	Physical Review B	en
dc.relation.ispartofseries	Volume 92, Issue 10
dc.rights	© 2015 American Physical Society (APS). This is the accepted version of the following article: Tyunina, M. & Chvostova, D. & Yao, L. D. & Dejneka, A. & Kocourek, T. & Jelinek, M. & van Dijken, S.. 2015. Interband transitions in epitaxial ferroelectric films of NaNbO3. Physical Review B. Volume 92, Issue 10. 104101/1-6. 2469-9950 (printed). DOI: 10.1103/physrevb.92.104101, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.104101.	en
dc.subject.other	Materials science	en
dc.subject.other	Physics	en
dc.title	Interband transitions in epitaxial ferroelectric films of NaNbO3	en
dc.type	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä	fi
dc.description.version	Peer reviewed	en
dc.rights.holder	American Physical Society (APS)
dc.contributor.school	Perustieteiden korkeakoulu	fi
dc.contributor.school	School of Science	en
dc.contributor.department	Teknillisen fysiikan laitos	fi
dc.contributor.department	Department of Applied Physics	en
dc.subject.keyword	ferroelectricity	en
dc.subject.keyword	optical transitions	en
dc.subject.keyword	band gap	en
dc.identifier.urn	URN:NBN:fi:aalto-201604141765
dc.type.dcmitype	text	en
dc.identifier.doi	10.1103/physrevb.92.104101
dc.type.version	Final published version	en

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