Soft mode behavior in SrTiO.sub.3./sub./DyScO.sub.3./sub. thin films: Evidence of ferroelectric and antiferrodistortive phase transitions

Nuzhnyy, Dmitry; Petzelt, Jan; Kamba, Stanislav; Kužel, Petr; Kadlec, Christelle; Bovtun, Viktor; Kempa, Martin; Schubert, J.; Brooks, C. M.; Schlom, D. G.

doi:https://dx.doi.org/10.1063/1.3271179

Number of the records: 1

Soft mode behavior in SrTiO.sub.3./sub./DyScO.sub.3./sub. thin films: Evidence of ferroelectric and antiferrodistortive phase transitions

1.

SYSNO ASEP	0336723
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Soft mode behavior in SrTiO₃/DyScO₃ thin films: Evidence of ferroelectric and antiferrodistortive phase transitions
Title	Chování měkkého módu ve SrTiO₃/DyScO₃tenké vrstvě: Důkaz pro feroelektrický a antiferodistortive fázový přechod
Author(s)	Nuzhnyy, Dmitry (FZU-D)_{RID, ORCID} Petzelt, Jan (FZU-D)_{RID, ORCID, SAI} Kamba, Stanislav (FZU-D)_{RID, ORCID, SAI} Kužel, Petr (FZU-D)_{RID, ORCID, SAI} Kadlec, Christelle (FZU-D)_{RID, ORCID} Bovtun, Viktor (FZU-D)_{RID, ORCID, SAI} Kempa, Martin (FZU-D)_{RID, ORCID} Schubert, J. (DE) Brooks, C. M. (US) Schlom, D. G. (US)
Number of authors	10
Source Title	Applied Physics Letters. - : AIP Publishing - ISSN 0003-6951 Roč. 95, č. 23 (2009), 232902/1-232902/3
Number of pages	3 s.
Language	eng - English
Country	US - United States
Keywords	ferroelectric soft mode ; strontium titanat ; strained thin film ; antiferrodistortive phase transition
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	KJB100100704 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA100100907 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	GA202/09/0682 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z10100520 - FZU-D (2005-2011)
UT WOS	000272627700069
DOI	10.1063/1.3271179
Annotation	Infrared reflectance, terahertz transmittance, and microwave resonance measurements show that SrTiO3 films, strained by ~1% in biaxial tension by growing them on (110) DyScO3 substrates, undergo a pronounced phonon softening near 270 K. This in-plane soft-mode drives the ferroelectric transition. The appearance of two new low-frequency modes and splitting of the high-frequency TO4 mode provide evidence of an antiferrodistortive phase below ~180 K.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2010

Number of the records: 1