STRAIN DECORATION OF DISLOCATIONS AND THE STATIC CENTRAL PEAK IN FERROELASTIC SYSTEMS

被引：8

作者：

CHAVES, AS

BLINC, R

机构：

[1] Departamento de Fisica, Instituto de Ciencias Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais

[2] Josef Stefan Institute, University of Ljubljana

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.43.1037

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A mechanism, based on anharmonic elasticity and the critical behavior of the strains around dislocations, is proposed for the ciritical static central peak seen in light scattering from KH2PO4 and KH3(SeO3)2. It is shown that the main source of the anomaly is the ferroelasticity occurring in both crystals, though ferroelectricity in KH2PO also enhances the scattering. © 1979 The American Physical Society.

引用

页码：1037 / 1040

页数：4

共 11 条

[1] ELECTRON-SPIN RESONANCE STUDIES OF KDP-TYPE CRYSTALS [J].

ADRIAENSSENS, GJ .

JOURNAL OF MAGNETIC RESONANCE, 1977, 25 (03) :511-517

[2] DEPENDENCE OF THE DYNAMIC CENTRAL PEAK ON DEUTERIUM CONTENT IN PARA-ELECTRIC KH2PO4 [J].

BLINC, R ;

SLAK, J ;

SABARRETO, FC ;

PIRES, AST .

PHYSICAL REVIEW LETTERS, 1979, 42 (15) :1000-1003

[3] ELASTO-OPTIC ANOMALY IN KH2PO4 [J].

BRODY, EM ;

CUMMINS, HZ .

PHYSICAL REVIEW LETTERS, 1969, 23 (18) :1039-&

[4] DISAPPEARING CENTRAL PEAK IN PARA-ELECTRIC POTASSIUM DIHYDROGEN PHOSPHATE (KDP) [J].

COURTENS, E .

PHYSICAL REVIEW LETTERS, 1978, 41 (17) :1171-1174

[5] DEUTERIUM IMPURITIES AND RAYLEIGH CENTRAL PEAK IN HYDROGEN-BONDED FERROELECTRICS [J].

COURTENS, E .

PHYSICAL REVIEW LETTERS, 1977, 39 (09) :561-564

[6] NATURE OF CENTRAL-PEAK LIGHT-SCATTERING IN POTASSIUM DIHYDROGEN PHOSPHATE [J].

DURVASULA, LN ;

GAMMON, RW .

PHYSICAL REVIEW LETTERS, 1977, 38 (19) :1081-1084

[7] CR5+ COUPLING TO LATERAL PROTON CONFIGURATIONS IN KH2ASO4 [J].

GAILLARD, J ;

GLOUX, P ;

MULLER, KA .

PHYSICAL REVIEW LETTERS, 1977, 38 (21) :1216-1219

[8] EPR STUDY OF CENTRAL PEAK FLUCTUATIONS IN AN ADA-ADP MIXED-CRYSTAL [J].

GONZAGA, LV ;

CHAVES, AS ;

BLINC, R ;

RIBEIRO, GM ;

GAZZINELLI, R ;

RIUS, G .

SOLID STATE COMMUNICATIONS, 1978, 27 (05) :495-500

[9]

KUBO R, 1969, SOLID STATE PHYSICS, P733

[10] PRELIMINARY OBSERVATION OF A CENTRAL PEAK IN LIGHT-SCATTERING SPECTRUM OF KH2PO4 [J].

LAGAKOS, N ;

CUMMINS, HZ .

PHYSICAL REVIEW B, 1974, 10 (03) :1063-1069

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