Precursor dynamics to the structural instability in SrTiO3

被引：19

作者：

Roleder, K. ^{[1
]}

Bussmann-Holder, A. ^{[2
]}

Gorny, M. ^{[1
]}

Szot, K. ^{[3
]}

Glazer, A. M. ^{[4
]}

机构：

[1] Univ Silesia, Inst Phys, PL-40007 Katowice, Poland

[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[3] Forschungszentrum Julich, D-52425 Julich, Germany

[4] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHASE TRANSITIONS | 2012年 / 85卷 / 11期

关键词：

perovskite; structural instability; precursor dynamics; birefringence; K PHASE-TRANSITION; STRONTIUM-TITANATE; FERROELECTRICITY; SCATTERING; BIREFRINGENCE; BEHAVIOR; MODES;

D O I：

10.1080/01411594.2012.699051

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The structural instability of SrTiO3 at T-S = 105 K is reinvestigated experimentally and theoretically by birefringence measurements and within the self-consistent phonon approximation. Analogous to BaTiO3 the phase transition shows precursor dynamics starting approximately 60 K above the phase transition temperature. These rotational dynamic clusters compete with precursor effects stemming from the polar soft mode and appear on different length scales as compared to BaTiO3.

引用

页码：939 / 948

页数：10

共 38 条

[11] BIREFRINGENCE OF SRTIO3 PRODUCED BY 105 DEGREES K STRUCTURAL PHASE-TRANSITION
COURTENS, E
[J]. PHYSICAL REVIEW LETTERS, 1972, 29 (20) : 1380 - &
[12] LATTICE DYNAMICS + PHASE TRANSITIONS OF STRONTIUM TITANATE
COWLEY, RA
[J]. PHYSICAL REVIEW, 1964, 134 (4A): : A981 - +
[13] Are there two length scales at phase transitions?
Cowley, RA
[J]. PHYSICA SCRIPTA, 1996, T66 : 24 - 30
[14] RELATIONSHIP OF NORMAL MODES OF VIBRATION OF STRONTIUM TITANATE AND ITS ANTIFERROELECTRIC PHASE TRANSITION AT 110 DEGREES K
COWLEY, RA
BUYERS, WJL
DOLLING, G
[J]. SOLID STATE COMMUNICATIONS, 1969, 7 (01) : 181 - &
[15] SOFT PHONON MODES AND 110 DEGREES K PHASE TRANSITION IN SRTIO3
FLEURY, PA
SCOTT, JF
WORLOCK, JM
[J]. PHYSICAL REVIEW LETTERS, 1968, 21 (01) : 16 - &
[16] Birefringence of SrTiO3 at the ferroelastic phase transition
Geday, MA
Glazer, AM
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (20) : 3303 - 3310
[17] Pressure-temperature phase diagram of SrTiO3 up to 53 GPa
Guennou, Mael
Bouvier, Pierre
Kreisel, Jens
Machon, Denis
[J]. PHYSICAL REVIEW B, 2010, 81 (05):
[18] CENTRAL-PEAK ENHANCEMENT IN HYDROGEN-REDUCED SRTIO3
HASTINGS, JB
SHAPIRO, SM
FRAZER, BC
[J]. PHYSICAL REVIEW LETTERS, 1978, 40 (04) : 237 - 239
[19] Dynamic fluctuations and static speckle in critical x-ray scattering from SrTiO3
Holt, M.
Sutton, M.
Zschack, P.
Hong, H.
Chiang, T. -C.
[J]. PHYSICAL REVIEW LETTERS, 2007, 98 (06)
[20] Ferroelectricity induced by oxygen isotope exchange in strontium titanate perovskite
Itoh, M
Wang, R
Inaguma, Y
Yamaguchi, T
Shan, YJ
Nakamura, T
[J]. PHYSICAL REVIEW LETTERS, 1999, 82 (17) : 3540 - 3543

← 1 2 3 4 →