Comment on "Interesting Evidence for Template-Induced Ferroelectric Behavior in Ultra-Thin Titanium Dioxide Films Grown on (110) Neodymium Gallium Oxide Substrates"

Stella Skiadopoulou; Stanislav Kamba; Jan Drahokoupil; Jan Kroupa; Nitin Deepak; Martyn E. Pemble; Roger W. Whatmore

doi:10.1002/adfm.201502441

Comment on "Interesting Evidence for Template-Induced Ferroelectric Behavior in Ultra-Thin Titanium Dioxide Films Grown on (110) Neodymium Gallium Oxide Substrates"

Stella Skiadopoulou
, Stanislav Kamba
, Jan Drahokoupil
, Jan Kroupa
, Nitin Deepak
, Martyn E. Pemble
, Roger W. Whatmore

Czech Academy of Sciences
Department of Materials
Imperial College London

Research output: Contribution to journal › Article › peer-review

Abstract

X-ray diffraction, second-harmonic generation and infrared reflectance investigations reveal no evidence for a polar phase or ferroelectric phase transition in 1.6% tensile strained anatase TiO₂ thin films. This indicates that the previously-reported potential ferroelectric behaviour, observed using piezoelectric force microscopy, may have been defect related, or the polar distortion is too small to detect using these methods.

Original language	English
Pages (from-to)	642-646
Number of pages	5
Journal	Advanced Functional Materials
Volume	26
Issue number	5
DOIs	https://doi.org/10.1002/adfm.201502441
Publication status	Published - 2 Feb 2016

Keywords

ferroelectricity
IR spectroscopy
phonons
SHG
TiO anatase
XRD

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10.1002/adfm.201502441

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title = "Comment on {"}Interesting Evidence for Template-Induced Ferroelectric Behavior in Ultra-Thin Titanium Dioxide Films Grown on (110) Neodymium Gallium Oxide Substrates{"}",

abstract = "X-ray diffraction, second-harmonic generation and infrared reflectance investigations reveal no evidence for a polar phase or ferroelectric phase transition in 1.6\% tensile strained anatase TiO2 thin films. This indicates that the previously-reported potential ferroelectric behaviour, observed using piezoelectric force microscopy, may have been defect related, or the polar distortion is too small to detect using these methods.",

keywords = "ferroelectricity, IR spectroscopy, phonons, SHG, TiO anatase, XRD",

author = "Stella Skiadopoulou and Stanislav Kamba and Jan Drahokoupil and Jan Kroupa and Nitin Deepak and Pemble, \{Martyn E.\} and Whatmore, \{Roger W.\}",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2016",

month = feb,

day = "2",

doi = "10.1002/adfm.201502441",

language = "English",

volume = "26",

pages = "642--646",

journal = "Advanced Functional Materials",

issn = "1616-301X",

publisher = "John Wiley and Sons Inc",

number = "5",

}

Comment on "Interesting Evidence for Template-Induced Ferroelectric Behavior in Ultra-Thin Titanium Dioxide Films Grown on (110) Neodymium Gallium Oxide Substrates". / Skiadopoulou, Stella; Kamba, Stanislav; Drahokoupil, Jan et al.
In: Advanced Functional Materials, Vol. 26, No. 5, 02.02.2016, p. 642-646.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Comment on "Interesting Evidence for Template-Induced Ferroelectric Behavior in Ultra-Thin Titanium Dioxide Films Grown on (110) Neodymium Gallium Oxide Substrates"

AU - Skiadopoulou, Stella

AU - Kamba, Stanislav

AU - Drahokoupil, Jan

AU - Kroupa, Jan

AU - Deepak, Nitin

AU - Pemble, Martyn E.

AU - Whatmore, Roger W.

PY - 2016/2/2

Y1 - 2016/2/2

N2 - X-ray diffraction, second-harmonic generation and infrared reflectance investigations reveal no evidence for a polar phase or ferroelectric phase transition in 1.6% tensile strained anatase TiO2 thin films. This indicates that the previously-reported potential ferroelectric behaviour, observed using piezoelectric force microscopy, may have been defect related, or the polar distortion is too small to detect using these methods.

AB - X-ray diffraction, second-harmonic generation and infrared reflectance investigations reveal no evidence for a polar phase or ferroelectric phase transition in 1.6% tensile strained anatase TiO2 thin films. This indicates that the previously-reported potential ferroelectric behaviour, observed using piezoelectric force microscopy, may have been defect related, or the polar distortion is too small to detect using these methods.

KW - ferroelectricity

KW - IR spectroscopy

KW - phonons

KW - SHG

KW - TiO anatase

KW - XRD

UR - https://www.scopus.com/pages/publications/84956822162

U2 - 10.1002/adfm.201502441

DO - 10.1002/adfm.201502441

M3 - Article

AN - SCOPUS:84956822162

SN - 1616-301X

VL - 26

SP - 642

EP - 646

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 5

ER -

Comment on "Interesting Evidence for Template-Induced Ferroelectric Behavior in Ultra-Thin Titanium Dioxide Films Grown on (110) Neodymium Gallium Oxide Substrates"

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Keywords

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