Infrared spectroscopy of strained BaTiO3/SrTiO3 superlattices on scandate substrates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00439386" target="_blank" >RIV/68378271:_____/14:00439386 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1080/01411594.2014.953953" target="_blank" >http://dx.doi.org/10.1080/01411594.2014.953953</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/01411594.2014.953953" target="_blank" >10.1080/01411594.2014.953953</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Infrared spectroscopy of strained BaTiO3/SrTiO3 superlattices on scandate substrates

Popis výsledku v původním jazyce

Polarized infrared reflectance of ferroelectric [(BaTiO)/(SrTiO)] superlattices grown on DyScO, TbScO, EuScO and SmScOsubstrates by reactive molecular beam epitaxy was measured. Infrared spectra (30?3000 cm) were taken independently from the (110) cut ofbare substrate and the substrate covered with superlattice in two polarizations: along the -axis and perpendicular to it. The phonon parameters and dielectric function of the superlattice were extracted using a fitting procedure to study the influence of the strain induced by different substrates. The phonon frequency dependence on the substrate-induced strain was varying from 75 to 95 cm. The superlattice static permittivity was estimated from that data, which varies from 150 to 270 depending on substrate and polarization. The highest permittivity was obtained for the EuScO substrate.

Název v anglickém jazyce

Infrared spectroscopy of strained BaTiO3/SrTiO3 superlattices on scandate substrates

Popis výsledku anglicky

Polarized infrared reflectance of ferroelectric [(BaTiO)/(SrTiO)] superlattices grown on DyScO, TbScO, EuScO and SmScOsubstrates by reactive molecular beam epitaxy was measured. Infrared spectra (30?3000 cm) were taken independently from the (110) cut ofbare substrate and the substrate covered with superlattice in two polarizations: along the -axis and perpendicular to it. The phonon parameters and dielectric function of the superlattice were extracted using a fitting procedure to study the influence of the strain induced by different substrates. The phonon frequency dependence on the substrate-induced strain was varying from 75 to 95 cm. The superlattice static permittivity was estimated from that data, which varies from 150 to 270 depending on substrate and polarization. The highest permittivity was obtained for the EuScO substrate.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Phase Transitions

ISSN

0141-1594

e-ISSN

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Svazek periodika

87

Číslo periodika v rámci svazku

10-11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

929-937

Kód UT WoS článku

000345840100004

EID výsledku v databázi Scopus

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