SINGLE-CRYSTAL NEUTRON-DIFFRACTION STUDY OF FERROELECTRIC BA0.92CA0.08TIO3

被引：1

作者：

RAJAGOPAL, H ^{[1
]}

SASTRY, PUM ^{[1
]}

SEQUEIRA, A ^{[1
]}

RAMASAMY, P ^{[1
]}

机构：

[1] ANNA UNIV,CTR CRYSTAL GROWTH,MADRAS 600025,INDIA

来源：

BULLETIN OF MATERIALS SCIENCE | 1994年 / 17卷 / 03期

关键词：

NEUTRON DIFFRACTION; FERROELECTRIC (BA/CA)TIO3;

D O I：

10.1007/BF02745170

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crystal structure of BaTiO3 doped with 8% Ca2+ is refined using single-crystal neutron diffraction data and it is shown that the doped Ca2+ ion substitutes only at the Ba sites. The refined cell (P4 mm) parameters am a = b = 3.982(3) angstrom, c = 4.003(3) angstrom with a final R value of 0.02 (on F). Existence of multiple domains in the crystal is ruled out based on refinement with multidomain model.

引用

页码：201 / 204

页数：4

共 8 条

[1] BUSING WR, 1962, ORNLTM305 REP
[2] SIGNIFICANCE TESTS ON CRYSTALLOGRAPHIC R FACTOR
HAMILTON, WC
[J]. ACTA CRYSTALLOGRAPHICA, 1965, 18 : 502 - &
[3] X-RAY AND NEUTRON DIFFRACTION STUDY OF TETRAGONAL BARIUM TITANATE
HARADA, J
PEDERSEN, T
BARNEA, Z
[J]. ACTA CRYSTALLOGRAPHICA SECTION A-CRYSTAL PHYSICS DIFFRACTION THEORETICAL AND GENERAL CRYSTALLOGRAPHY, 1970, A 26 : 336 - &
[4] Kulagin N., 1989, Ferroelectrics, V92, DOI 10.1080/00150198908211350
[5] A METHOD FOR GROWING BARIUM TITANATE SINGLE CRYSTALS
REMEIKA, JP
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1954, 76 (03) : 940 - 941
[6] NEUTRON-DIFFRACTION STUDY OF FERROELECTRIC BA0.88CA0.12TIO3
TIWARI, VS
PANDEY, D
KRISHNA, PSR
CHAKRAVARTHY, R
DASANNACHARYA, BA
[J]. PHYSICA B, 1991, 174 (1-4): : 112 - 116
[7] WEHE DJ, 1992, ORABS RM229 ORNL REP
[8] THE EFFECT OF OCTAHEDRALLY-COORDINATED CALCIUM ON THE FERROELECTRIC TRANSITION OF BATIO3
ZHUANG, ZQ
HARMER, MP
SMYTH, DM
NEWNHAM, RE
[J]. MATERIALS RESEARCH BULLETIN, 1987, 22 (10) : 1329 - 1335

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