Dielectric response of (Ba,Sr)TiO3 thin films in a terahertz and IR ranges

被引：8

作者：

Komandin, G. A. ^{[1
]}

Mukhortov, V. M. ^{[2
]}

Porodinkov, O. E. ^{[1
]}

Spektor, I. E. ^{[1
]}

机构：

[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia

[2] Russian Acad Sci, So Sci Ctr, Rostov Na Donu 344006, Russia

来源：

PHYSICS OF THE SOLID STATE | 2013年 / 55卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

BARIUM-STRONTIUM-TITANATE; OPTICAL PHONONS; SPECTRA;

D O I：

10.1134/S1063783413020133

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Dependences of the dielectric response spectra on the thickness of the films based on the (Ba,Sr)TiO3 (BST) solid solutions, which were deposited on single-crystal MgO substrates, have been analyzed. Using the Lorentz and Lyddane-Sachs-Teller models, the mutual correspondence of longitudinal optical (LO) and transverse optical (TO) phonon frequencies has established. The giant LO-TO splitting of the lowest-frequency vibration and inversion of LO and TO frequencies of other phonons in the IR spectrum of BST films has been found for the first time.

引用

页码：288 / 292

页数：5

共 17 条

[1] PLASMON AND POLAR OPTICAL PHONONS IN REDUCED RUTILE TIO2-X
BAUMARD, JF
GERVAIS, F
[J]. PHYSICAL REVIEW B, 1977, 15 (04): : 2316 - 2323
[2] Structure and lattice dynamics of heterostructures based on bismuth ferrite and barium strontium titanate on magnesium oxide substrates
Golovko, Yu. I.
Mukhortov, V. M.
Bunina, O. A.
Zakharchenko, I. N.
Anokhin, A. S.
Shirokov, V. B.
Yuzyuk, Yu. I.
[J]. PHYSICS OF THE SOLID STATE, 2010, 52 (07) : 1432 - 1438
[3] Dielectric spectra of Bi0.98Nd0.02FeO3.00 multiferroic thin films in the terahertz frequency range
Komandin, G. A.
Torgashev, V. I.
Volkov, A. A.
Porodinkov, O. E.
Spektor, I. E.
Mukhortov, V. M.
[J]. PHYSICS OF THE SOLID STATE, 2010, 52 (09) : 1842 - 1849
[4] Multiphonon Absorption in a MgO Single Crystal in the Terahertz Range
Komandin, G. A.
Porodinkov, O. E.
Spector, I. E.
Volkov, A. A.
[J]. PHYSICS OF THE SOLID STATE, 2009, 51 (10) : 2045 - 2050
[5] Terahertz dielectric spectra of (Ba,Sr)TiO3 thin films
Komandin, G. A.
Volkov, A. A.
Spektor, I. E.
Vorotilov, K. A.
Mukhortov, V. M.
[J]. PHYSICS OF THE SOLID STATE, 2009, 51 (07) : 1351 - 1355
[6] On the polar vibrations of alkali halides
Lyddane, RH
Sachs, RG
Teller, E
[J]. PHYSICAL REVIEW, 1941, 59 (08): : 673 - 676
[7] Dielectric properties of nanometer-thick barium-strontium titanate films
Migunov, S. N.
Volkov, A. A.
Komandin, G. A.
Lobanov, A. N.
Gorshunov, B. P.
Golovko, Yu. I.
Mukhortov, V. M.
Yuzyuk, Yu. I.
[J]. TECHNICAL PHYSICS, 2008, 53 (11) : 1485 - 1489
[8] Infrared phonon spectroscopy of a compressively strained (001) SrTiO3 film grown on a (110) NdGaO3 substrate
Nuzhnyy, D.
Petzelt, J.
Kamba, S.
Marti, X.
Cechal, T.
Brooks, C. M.
Schlom, D. G.
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (04)
[9] Soft mode behavior in SrTiO3/DyScO3 thin films: Evidence of ferroelectric and antiferrodistortive phase transitions
Nuzhnyy, D.
Petzelt, J.
Kamba, S.
Kuzel, P.
Kadlec, C.
Bovtun, V.
Kempa, M.
Schubert, J.
Brooks, C. M.
Schlom, D. G.
[J]. APPLIED PHYSICS LETTERS, 2009, 95 (23)
[10] Origin of soft-mode stiffening and reduced dielectric response in SrTiO3 thin films -: art. no. 235406
Ostapchuk, T
Petzelt, J
Zelezny, V
Pashkin, A
Pokorny, J
Drbohlav, I
Kuzel, R
Rafaja, D
Gorshunov, BP
Dressel, M
Ohly, C
Hoffmann-Eifert, S
Waser, R
[J]. PHYSICAL REVIEW B, 2002, 66 (23) : 1 - 12

← 1 2 →