Mechanism of polarization response in the ergodic phase of a relaxor ferroelectric

被引：137

作者：

Tagantsev, AK ^{[1
]}

Glazounov, AE ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Lab Ceram, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.57.18

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is shown that the effects of large de bias and ac driving fields on the dielectric permittivity of single crystals of PbMg1/3Nb2/3O3 (PMN) relaxer ferroelectric exhibit very different behavior, including anisotropy and sign of the effect, which is traced up to the high-temperature interval in the ergodic phase. The observed phenomena strongly suggest that in the ergodic phase of PMN the dielectric response to the ac field is controlled by a side-way motion of the interphase boundaries of the polar regions, rather than by the thermally activated reorientations of the local spontaneous polarization.

引用

页码：18 / 21

页数：4

共 20 条

[1] CALCULATIONS OF DIELECTRIC-PROPERTIES FROM THE SUPERPARAELECTRIC MODEL OF RELAXORS [J].

BELL, AJ .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (46) :8773-8792

[2] THE LEAD MAGNONIOBATE BEHAVIOR IN APPLIED ELECTRIC FIELD [J].

Colla, E. V. ;

Koroleva, E. Yu. ;

Nabereznov, A. A. ;

Okuneva, N. M. .

FERROELECTRICS, 1994, 151 (01) :337-342

[3]

CROSS LE, 1987, FERROELECTRICS, V76, P241, DOI 10.2109/jcersj.99.829

[4] A STRUCTURAL MODEL FOR THE RELAXOR PBMG1/3NB2/3O3 AT 5-K [J].

DEMATHAN, N ;

HUSSON, E ;

CALVARIN, G ;

GAVARRI, JR ;

HEWAT, AW ;

MORELL, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (42) :8159-8171

[5] ACOUSTICAL PROPERTIES OF DISORDERED FERROELECTRICS [J].

DOROGOVTSEV, SN ;

YUSHIN, NK .

FERROELECTRICS, 1990, 112 :27-44

[6] AN ASYMMETRIC DOUBLE-WELL POTENTIAL MODEL FOR STRUCTURAL RELAXATION PROCESSES IN AMORPHOUS MATERIALS [J].

GILROY, KS ;

PHILLIPS, WA .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1981, 43 (05) :735-746

[7] EFFECT OF THE AC ELECTRIC FIELD ON THE DIELECTRIC PERMITTIVITY OF LEAD MAGNESIUM NIOBATE RELAXOR [J].

Glazounov, A. E. ;

Tagantsev, A. K. ;

Bell, A. J. .

FERROELECTRICS, 1996, 184 :217-226

[8] RELAXORS AS SUPERPARAELECTRICS WITH DISTRIBUTIONS OF THE LOCAL TRANSITION-TEMPERATURE [J].

GLAZOUNOV, AE ;

BELL, AJ ;

TAGANTSEV, AK ;

TAGANTSEV, AK .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (21) :4145-4168

[9] Evidence for domain-type dynamics in the ergodic phase of the PbMg1/3Nb2/3O3 relaxor ferroelectric [J].

Glazounov, AE ;

Tagantsev, AK ;

Bell, AJ .

PHYSICAL REVIEW B, 1996, 53 (17) :11281-11284

[10]

GLAZOUNOV AE, IN PRESS FERROELECTR

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