Published July 2005 | Version v1
Journal article Metadata-only

Dielectric and dilatometric studies of 0.65 PbMg1/3Nb2/3O3-0.35PbTiO3 single crystals from morphotropic boundary range

Creators

  • 1. Rostovskij Gosudarstvennyj Univ., Rostov-na-Donu (Russian Federation)
  • 2. Pikardijskij Univ., Am'en (France)

Description

The phase transitions are investigated in 0.65 PbMg1/3Nb2/3O3-0.35PbTiO3 (PMN-0.35PT) single crystals and the influence of permanent electric field on these temperatures transitions are studied. It has been found that for the single crystals from the morphotropic boundary range there is Ec ≅ 0.7-1 kV cm-1 constant electric field threshold value above which the crystal properties are similar to these of ferroelectrics, while at E < Ec the crystals manifest relaxation-like dielectric features and the temperature of permittivity maximum does not depend on E

Abstract (Russian)

Исследованы фазовые переходы с монокристалле 0.65 PbMg1/3Nb2/3O3-0.35PbTiO3 (PMN-0.35PT) и изучено влияние постоянного электрического поля на температуры этих переходов. Обнаружено, что для данных монокристаллов, принадлежащих к морфотропной области, существует пороговая величина постоянного электрического поля Еп ≅ 0.7-1 кВ см-1, выше которой свойства кристаллов аналогичны обычным сегнетоэлектрикам, в то время как при E < Eп кристаллы проявляют релаксоподобные диэлектрические свойства и температура максимума диэлектрической проницаемости не зависит от Е

Additional details

Additional titles

Original title (Russian)
Диэлектрические и дилатометрические исследования монокристаллов 0.65 PbMg

Publishing Information

Journal Title
Izvestiya Akademii Nauk. Rossijskaya Akademiya Nauk. Seriya Fizicheskaya
Journal Volume
69
Journal Issue
7
Journal Page Range
p. 1033-1035
ISSN
1026-3489
CODEN
IRAFEO

Conference

Title
OMA-2004 and ODPO-2004
Original Conference Title
7. Mezhdistsiplinarnyj mezhdunarodnyj simpozium: Fazovye prevrashcheniya v tverdykh rastvorakh i splavakh (OMA-2002) i 7. Mezhdistsiplinarnyj mezhdunarodnyj simpozium: Poryadok, besporyadok i svojstva oksidov (ODPO-2002)
Dates
Sep 2004
Place
Rostov-na-Donu (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37104308
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CRYSTAL GROWTH; CRYSTAL-PHASE TRANSFORMATIONS; CUBIC LATTICES; DIELECTRIC PROPERTIES; ELECTRIC FIELDS; LEAD COMPOUNDS; MAGNESIUM COMPOUNDS; MONOCRYSTALS; NIOBATES; PIEZOELECTRICITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TETRAGONAL LATTICES; THERMAL EXPANSION; TITANATES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; ELECTRICAL PROPERTIES; ELECTRICITY; EXPANSION; NIOBIUM COMPOUNDS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; REFRACTORY METAL COMPOUNDS; TEMPERATURE RANGE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
17 refs., 2 figs.