PHASE SEQUENCE IN STRONGLY DEUTERATED BETAINE ARSENATE

被引：11

作者：

ALMEIDA, A ^{[1
]}

CARVALHO, PS ^{[1
]}

CHAVES, MR ^{[1
]}

KLOPPERPIEPER, A ^{[1
]}

ALBERS, J ^{[1
]}

机构：

[1] UNIV SAARLAND, FACHBEREICH PHYS, D-66041 SAARBRUCKEN, GERMANY

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1994年 / 184卷 / 01期

关键词：

D O I：

10.1002/pssb.2221840120

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Betaine arsenate (BA) exhibits a structural phase transition at almost-equal-to 119 K and becomes ferroelectric below this temperature. The deuteration changes drastically its properties and an antiferroelectric phase emerges between the paraelectric and the low temperature ferroelectric phase, for deuterium content higher than 77%. A previous work explained the transition sequence of BA and deuterated BA (DBA) on the basis of competitive interactions. A detailed experimental study of the pyroelectric and dielectric properties of DBA at zero field and under dc electric fields is reported. This study, carried out in DBA with deuterium content of 85%, reveals a new polar phase. The phase diagram shows the existence of a field induced ferroelectric phase and the experimental data obtained provide evidence for the role played by competitive interactions in DBA.

引用

页码：225 / 235

页数：11

共 16 条

[1]

ALBERS J, 1984, FERROELECTRICS, V54, P45

[2] PYROELECTRIC EFFECT AND FREEZING OUT OF DOMAIN-STRUCTURE IN BETAINE ARSENATE [J].

ALMEIDA, A ;

CARVALHO, P ;

CHAVES, MR ;

AZEVEDO, JC .

FERROELECTRICS LETTERS SECTION, 1988, 9 (04) :107-116

[3] NONLINEAR BEHAVIOR IN BETAINE ARSENATE [J].

ALMEIDA, A ;

CARVALHO, PS ;

CHAVES, MR ;

PIRES, AR ;

MUSER, HE ;

KLOPPERPIEPER, A .

FERROELECTRICS, 1990, 108 :347-350

[4] CRITICAL DIELECTRIC-RELAXATION OF HIGHLY DEUTERATED BETAINE ARSENATE AT MICROWAVE-FREQUENCIES [J].

BRUCKNER, HJ .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1989, 75 (02) :259-264

[5] COMPETITIVE INTERACTIONS IN BETAINE COMPOUNDS [J].

CHAVES, MR ;

ALMEIDA, A .

PHYSICA SCRIPTA, 1991, T35 :179-183

[6]

EHSES KH, 1990, FERROELEKTRIZITAT 89, V6

[7] INVESTIGATION ON THE DYNAMICS OF FERROELECTRIC AND ANTIFERROELECTRIC BETAINE COMPOUNDS [J].

FREITAG, O ;

BRUCKNER, HJ ;

UNRUH, HG .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1985, 61 (01) :75-80

[8]

Holakovsky J., 1973, Physica Status Solidi B, V56, P615, DOI 10.1002/pssb.2220560224

[9]

KLOPPERPIEPER A, 1982, FERROELECTRICS LETT, V44, P115, DOI 10.1080/07315178208201879

[10]

KROUPA J, 1991, PHASE TRANSIT, V36, P309

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