Optical study of the spontaneous ferroelectric phase transition in lead scandoniobate single crystals

被引：6

作者：

Kamzina, LS ^{[1
]}

Krainik, NN ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

PHYSICS OF THE SOLID STATE | 2000年 / 42卷 / 09期

关键词：

D O I：

10.1134/1.1309456

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A study is reported of the optical transmission and small-angle light scattering (SAS) in ordered and disordered stoichiometric single crystals of lead scandoniobate (PSN) with a zero and a dc electric field applied. It is shown that the spontaneous phase transition occurring in both crystals is accompanied by a sharp peak in SAS intensity, which implies the percolation nature of this transition. A field-temperature phase diagram has been constructed for the PSN single crystals studied in the work. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：1712 / 1715

页数：4

共 17 条

[1]

CARANONI C, 9 EUR M FERR PRAG 19, P219

[2] ROLE OF DEFECTS IN THE FERROELECTRIC RELAXER LEAD SCANDIUM TANTALATE [J].

CHU, F ;

REANEY, IM ;

SETTER, N .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (07) :1947-1952

[3] THE SPONTANEOUS RELAXOR-FERROELECTRIC TRANSITION OF PB(SC0.5TA0.5)O3 [J].

CHU, F ;

SETTER, N ;

TAGANTSEV, AK .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (08) :5129-5134

[4] SPONTANEOUS (ZERO-FIELD) RELAXOR-TO-FERROELECTRIC-PHASE TRANSITION IN DISORDERED PB(SC1/2NB1/2)O-3 [J].

CHU, F ;

REANEY, IM ;

SETTER, N .

JOURNAL OF APPLIED PHYSICS, 1995, 77 (04) :1671-1676

[5]

Chu F, 1998, J AM CERAM SOC, V81, P1577

[6] A random field theory based model for ferroelectric relaxors [J].

Glinchuk, MD ;

Farhi, R .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (37) :6985-6996

[7]

Kamzina L. S., 1992, Soviet Physics - Solid State, V34, P957

[8]

Kamzina L. S., 1994, Physics of the Solid State, V36, P264

[9]

KAMZINA LS, 1989, JETP LETT+, V50, P163

[10] PERCOLATION PROCESSES AND ANOMALOUS LIGHT-SCATTERING IN FERROELECTRICS WITH A DIFFUSE PHASE-TRANSITION [J].

KAMZINA, LS ;

KORZHENEVSKII, AL .

FERROELECTRICS, 1992, 131 (1-4) :91-95

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