| ROSSLE, Matthias, C.N. WANG, Přemysl MARŠÍK, M. YAZDI-RIZI, K.W. KIM, Adam DUBROKA, I. MAROZAU, C.W. SCHNEIDER, Josef HUMLÍČEK, Dionys BAERISWYL a Christian BERNHARD. Optical probe of ferroelectric order in bulk and thin-film perovskite titanates. Physical Review B. USA: The American Physical Society, 2013, roč. 88, č. 10, s. "nestránkováno", 7 s. ISSN 1098-0121. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.88.104110. |
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@article{1136311,
author = {Rossle, Matthias and Wang, C.N. and Maršík, Přemysl and YazdiandRizi, M. and Kim, K.W. and Dubroka, Adam and Marozau, I. and Schneider, C.W. and Humlíček, Josef and Baeriswyl, Dionys and Bernhard, Christian},
article_location = {USA},
article_number = {10},
doi = {http://dx.doi.org/10.1103/PhysRevB.88.104110},
keywords = {quantum dots; SiGe; photoluminescence; excitonic structure; biexciton},
language = {eng},
issn = {1098-0121},
journal = {Physical Review B},
title = {Optical probe of ferroelectric order in bulk and thin-film perovskite titanates},
url = {http://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.104110},
volume = {88},
year = {2013}
}
TY - JOUR
ID - 1136311
AU - Rossle, Matthias - Wang, C.N. - Maršík, Přemysl - Yazdi-Rizi, M. - Kim, K.W. - Dubroka, Adam - Marozau, I. - Schneider, C.W. - Humlíček, Josef - Baeriswyl, Dionys - Bernhard, Christian
PY - 2013
TI - Optical probe of ferroelectric order in bulk and thin-film perovskite titanates
JF - Physical Review B
VL - 88
IS - 10
SP - "nestránkováno"
EP - "nestránkováno"
PB - The American Physical Society
SN - 10980121
KW - quantum dots
KW - SiGe
KW - photoluminescence
KW - excitonic structure
KW - biexciton
UR - http://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.104110
L2 - http://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.104110
N2 - We have measured the temperature dependence of the direct band gap Eg in SrTiO3 and BaTiO3 and related materials with quantum-paraelectric and ferroelectric properties using optical spectroscopy. We show that Eg exhibits an anomalous temperature dependence with pronounced changes in the vicinity of the ferroelectric transition that can be accounted for in terms of the Frohlich electron-phonon interaction with an optical phonon mode, the so-called soft mode. In addition, we demonstrate that these characteristic changes of Eg can be readily detected even in very thin films of SrTiO3 with a strain-induced ferroelectric order. Optical spectroscopy thus can be used as a rather sensitive probe of ferroelectric order in very thin films of these titanates and probably also in subsequent multilayers and devices.
ER -
ROSSLE, Matthias, C.N. WANG, Přemysl MARŠÍK, M. YAZDI-RIZI, K.W. KIM, Adam DUBROKA, I. MAROZAU, C.W. SCHNEIDER, Josef HUMLÍČEK, Dionys BAERISWYL a Christian BERNHARD. Optical probe of ferroelectric order in bulk and thin-film perovskite titanates. \textit{Physical Review B}. USA: The American Physical Society, 2013, roč.~88, č.~10, s.~''nestránkováno'', 7 s. ISSN~1098-0121. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.88.104110.
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