Ambience-sensitive optical refraction in ferroelectric nano?lms of NaNbO3./sub

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00432844" target="_blank" >RIV/68378271:_____/14:00432844 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1468-6996/15/4/045001" target="_blank" >http://dx.doi.org/10.1088/1468-6996/15/4/045001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1468-6996/15/4/045001" target="_blank" >10.1088/1468-6996/15/4/045001</a>

Result language

angličtina

Original language name

Ambience-sensitive optical refraction in ferroelectric nano?lms of NaNbO3./sub

Original language description

The optical index of refraction n is studied by spectroscopic ellipsometry in electrode-less cube-on-cube-type epitaxial NaNbO3 ?lms with thicknesses of 9?14 nm and anisotropic lattice strain of (0?1)%. The index n is approximately 2.1?2.2 and it exhibits a strong sensitivity to atmospheric-pressure gas ambience. The index n in air signi?cantly exceeds that in an oxygen ambience, with the difference as large as ?n= 0.2. The thermo-optical behaviour n(T) indicates ferroelectric state in the NaNbO3 nano?lms, with the strain-dependent polarization and temperature of phase transition. The observed ambience-sensitive optical refraction is explained using the fundamental connection between refraction and ferroelectric polarization in perovskites, and considering screening of the depolarizing ?eld on ambience-sensitive thermodynamically stable surfaces of the NaNbO3 nano?lms.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Science and Technology of Advanced Materials

ISSN

1468-6996

e-ISSN

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Volume of the periodical

15

Issue of the periodical within the volume

4

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

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UT code for WoS article

000345025400010

EID of the result in the Scopus database

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