Temperature-dependent far-infrared reflectance of an epitaxial
(BaTiO3)(8)/(SrTiO3)(4) superlattice

J 2017

Temperature-dependent far-infrared reflectance of an epitaxial (BaTiO3)(8)/(SrTiO3)(4) superlattice

ŽELEZNÝ, Vladimír, Ondřej CAHA, A. SOUKIASSIAN, D.G. SCHLOM, X.X. XI et. al.

Základní údaje

Originální název

Temperature-dependent far-infrared reflectance of an epitaxial (BaTiO3)(8)/(SrTiO3)(4) superlattice

Název česky

Teplotní závislost reflektance epitaxní supermřížky (BaTiO3)(8)/(SrTiO3)(4) ve vzdálené infračervené oblasti

Autoři

ŽELEZNÝ, Vladimír (203 Česká republika), Ondřej CAHA (203 Česká republika, garant, domácí), A. SOUKIASSIAN (840 Spojené státy), D.G. SCHLOM (840 Spojené státy) a X.X. XI (840 Spojené státy)

Vydání

Physical Review B, AMERICAN PHYSICAL SOCIETY, 2017, 2469-9950

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.813

Kód RIV

RIV/00216224:14310/17:00097121

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1103/PhysRevB.95.214110

UT WoS

000403345100001

Klíčová slova česky

feroelektrické tenké vrstvy; BaTiO3/SrTiO3 supermřížky

Klíčová slova anglicky

FERROELECTRIC THIN-FILMS; BATIO3/SRTIO3 SUPERLATTICES; POLARIZATION ENHANCEMENT; DIELECTRIC-CONSTANT; RAMAN-SPECTROSCOPY; PHASE-TRANSITIONS; STRAIN; NANOSCALE; SRTIO3; HETEROSTRUCTURES

Štítky

NZ, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 12. 4. 2018 12:02, Ing. Nicole Zrilić

Anotace

ORIG CZ

V originále

Infrared reflectance spectra of the polar optic phonons in a [(BaTiO3)(8)/(SrTiO3)(4)](50) superlattice over the temperature range 8 to 650 K are reported. The spectra exhibit lattice vibration features typical of the perovskite constituents, BaTiO3 and SrTiO3. Using the effective medium approximation for multilayer systems and a fitting procedure, we were able to successfully simulate the infrared reflectivity of the superlattice structures and extract the parameters and dielectric functions of the phonons. When applied at varying temperatures, this approach provides the parameters of the zone-center polar phonons and their temperature dependence. Comparing these results with x-ray diffraction we identified some anomalies in phonon behavior related to the phase transitions that the superlattice undergoes.

Česky

Infračervená spektra optických fononů v supermřížce [(BaTiO3)(8)/(SrTiO3)(4)](50) byla naměřena pro teploty od 8 do 650K.

Návaznosti

LM2011020, projekt VaV

Název: CEITEC ? open access

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC - open access

Citovat

ŽELEZNÝ, Vladimír, Ondřej CAHA, A. SOUKIASSIAN, D.G. SCHLOM a X.X. XI. Temperature-dependent far-infrared reflectance of an epitaxial (BaTiO3)(8)/(SrTiO3)(4) superlattice. Physical Review B. AMERICAN PHYSICAL SOCIETY, 2017, roč. 95, č. 21, s. "214110-1"-"214110-10", 10 s. ISSN 2469-9950. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.95.214110.

@article{1384791,
   author = {Železný, Vladimír and Caha, Ondřej and Soukiassian, A. and Schlom, D.G. and Xi, X.X.},
   article_number = {21},
   doi = {http://dx.doi.org/10.1103/PhysRevB.95.214110},
   keywords = {FERROELECTRIC THIN-FILMS; BATIO3/SRTIO3 SUPERLATTICES; POLARIZATION ENHANCEMENT; DIELECTRIC-CONSTANT; RAMAN-SPECTROSCOPY; PHASE-TRANSITIONS; STRAIN; NANOSCALE; SRTIO3; HETEROSTRUCTURES},
   language = {eng},
   issn = {2469-9950},
   journal = {Physical Review B},
   title = {Temperature-dependent far-infrared reflectance of an epitaxial (BaTiO3)(8)/(SrTiO3)(4) superlattice},
   volume = {95},
   year = {2017}
}

TY  - JOUR
ID  - 1384791
AU  - Železný, Vladimír - Caha, Ondřej - Soukiassian, A. - Schlom, D.G. - Xi, X.X.
PY  - 2017
TI  - Temperature-dependent far-infrared reflectance of an epitaxial (BaTiO3)(8)/(SrTiO3)(4) superlattice
JF  - Physical Review B
VL  - 95
IS  - 21
SP  - "214110-1"-"214110-10"
EP  - "214110-1"-"214110-10"
PB  - AMERICAN PHYSICAL SOCIETY
SN  - 24699950
KW  - FERROELECTRIC THIN-FILMS
KW  - BATIO3/SRTIO3 SUPERLATTICES
KW  - POLARIZATION ENHANCEMENT
KW  - DIELECTRIC-CONSTANT
KW  - RAMAN-SPECTROSCOPY
KW  - PHASE-TRANSITIONS
KW  - STRAIN
KW  - NANOSCALE
KW  - SRTIO3
KW  - HETEROSTRUCTURES
N2  - Infrared reflectance spectra of the polar optic phonons in a [(BaTiO3)(8)/(SrTiO3)(4)](50) superlattice over the temperature range 8 to 650 K are reported. The spectra exhibit lattice vibration features typical of the perovskite constituents, BaTiO3 and SrTiO3. Using the effective medium approximation for multilayer systems and a fitting procedure, we were able to successfully simulate the infrared reflectivity of the superlattice structures and extract the parameters and dielectric functions of the phonons. When applied at varying temperatures, this approach provides the parameters of the zone-center polar phonons and their temperature dependence. Comparing these results with x-ray diffraction we identified some anomalies in phonon behavior related to the phase transitions that the superlattice undergoes.
ER  -

ŽELEZNÝ, Vladimír, Ondřej CAHA, A. SOUKIASSIAN, D.G. SCHLOM a X.X. XI. Temperature-dependent far-infrared reflectance of an epitaxial (BaTiO3)(8)/(SrTiO3)(4) superlattice. \textit{Physical Review B}. AMERICAN PHYSICAL SOCIETY, 2017, roč.~95, č.~21, s.~''214110-1''-''214110-10'', 10 s. ISSN~2469-9950. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.95.214110.

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