DO WE NEED THE ETHER OF POLAR NANOREGIONS?

被引：86

作者：

Hlinka, J. ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys, Na Slovance 2, Prague 18221 8, Czech Republic

来源：

JOURNAL OF ADVANCED DIELECTRICS | 2012年 / 2卷 / 02期

关键词：

Relaxors; ferroelectrics; polar nanoregions; diffuse scattering;

D O I：

10.1142/S2010135X12410068

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper deals with possible experimental signatures of the so-called polar nanoregions in lead-based perovskite relaxors. It outlines both traditional and alternative approaches to these signatures. It is argued that the concept of polar nanoregions is useful but largely speculative. Polar nanoregions are compared with ferroelectric nanodomains. Qualitative explanation of the principal "relaxor" properties of PMN are discussed in both frameworks. It is argued that polarization as a vector may not be well defined at any nanometric region in PMN Crystal.

引用

页数：6

共 32 条

[1] Soft Mode Doublet in PbMg1/3Nb2/3O3 Relaxor Investigated with Hyper-Raman Scattering [J].

Al-Zein, A. ;

Hlinka, J. ;

Rouquette, J. ;

Hehlen, B. .

PHYSICAL REVIEW LETTERS, 2010, 105 (01)

[2]

[Anonymous], 2011, INT WORKSH STRUCT PR

[3] Direct observation of B-site cation displacements in Pb-based complex perovskite relaxor oxides [J].

Baba-Kishi, K. Z. .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2011, 44 :111-121

[4]

Blinc R, 2011, ADV FERROELECTRICITY

[5] X-RAY AND NEUTRON-DIFFRACTION STUDIES OF THE DIFFUSE PHASE-TRANSITION IN PBMG1/3NB2/3O3 CERAMICS [J].

BONNEAU, P ;

GARNIER, P ;

CALVARIN, G ;

HUSSON, E ;

GAVARRI, JR ;

HEWAT, AW ;

MORELL, A .

JOURNAL OF SOLID STATE CHEMISTRY, 1991, 91 (02) :350-361

[6] Diffuse scattering in relaxor ferroelectrics: true three-dimensional mapping, experimental artefacts and modelling [J].

Bosak, A. ;

Chernyshov, D. ;

Vakhrushev, Sergey ;

Krisch, M. .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2012, 68 :117-123

[7] Central-peak components and polar soft mode in relaxor PbMg1/3Nb2/3O3 crystals [J].

Bovtun, V ;

Kamba, S ;

Pashkin, A ;

Savinov, M ;

Samoukhina, P ;

Petzelt, J ;

Bykov, IP ;

Glinchuk, MD .

FERROELECTRICS, 2004, 298 :23-30

[8] Broadband dielectric spectroscopy of phonons and polar nanoclusters in PbMg1/3Nb2/3O3-35%PbTiO3 ceramics: Grain size effects [J].

Bovtun, V. ;

Kamba, S. ;

Veljko, S. ;

Nuzhnyy, D. ;

Kroupa, J. ;

Savinov, M. ;

Vanek, P. ;

Petzelt, J. ;

Holc, J. ;

Kosec, M. ;

Amorin, H. ;

Alguero, M. .

PHYSICAL REVIEW B, 2009, 79 (10)

[9] GLASSY POLARIZATION BEHAVIOR IN FERROELECTRIC COMPOUNDS PB(MG1/3NB2/3)O3 AND PB(ZN1/3NB2/3)O3 [J].

BURNS, G ;

DACOL, FH .

SOLID STATE COMMUNICATIONS, 1983, 48 (10) :853-856

[10] CHAIN STRUCTURE OF BATIO3 AND KNBO3 [J].

COMES, R ;

LAMBERT, M ;

GUINIER, A .

SOLID STATE COMMUNICATIONS, 1968, 6 (10) :715-&

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