BISMUTH VALENCE ORDER-DISORDER STUDY IN BABIO3 BY POWDER NEUTRON-DIFFRACTION

被引:131
作者
CHAILLOUT, C
SANTORO, A
REMEIKA, JP
COOPER, AS
ESPINOSA, GP
MAREZIO, M
机构
[1] NBS,GAITHERSBURG,MD 20899
[2] AT&T BELL LABS,MURRAY HILL,NJ 07974
关键词
BARIUM COMPOUNDS - Thermal Properties - CRYSTALS - NEUTRONS - Diffraction - SUPERCONDUCTIVITY;
D O I
10.1016/0038-1098(88)90094-4
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Two structural arrangements have been shown to exist for the perovskite-like compound BaBi//0//. //5**3** plus Bi//0//. //5**5** plus O//3 by powder neutron diffraction data. The first is characterized by a partial (75%) order of the Bi**3** plus and Bi**5** plus cations on the two crystallographically independent sites, while in the second arrangement the two cations are almost 100% disordered. The structure of eleven differently-prepared BaBiO//3 samples showed that the deciding factor for obtaining one or the other arrangement is the temperature at which the sample is prepared or subsequently heat-treated. On the contrary, the cooling rate and the atmosphere (air or oxygen) do not seem to be important parameters. DTA measurements indicated that BaBiO//3 undergoes an additional phase transition at 860 degree C on heating and 801 degree C on cooling.
引用
收藏
页码:1363 / 1369
页数:7
相关论文
共 13 条
[1]   OXYGEN VACANCY ORDERING IN THE BABIO3-Y SYSTEM [J].
CHAILLOUT, C ;
REMEIKA, JP .
SOLID STATE COMMUNICATIONS, 1985, 56 (10) :833-835
[2]   THE DETERMINATION OF THE BI VALENCE STATE IN BABIO3 BY NEUTRON POWDER DIFFRACTION DATA [J].
CHAILLOUT, C ;
REMEIKA, JP ;
SANTORO, A ;
MAREZIO, M .
SOLID STATE COMMUNICATIONS, 1985, 56 (10) :829-831
[3]   CRYSTAL-STRUCTURE OF BA2BI3+BI5+O6 [J].
COX, DE ;
SLEIGHT, AW .
SOLID STATE COMMUNICATIONS, 1976, 19 (10) :969-973
[4]   ELECTRONIC-STRUCTURE OF BAPB1-XBIXO3 [J].
MATTHEISS, LF ;
HAMANN, DR .
PHYSICAL REVIEW B, 1983, 28 (08) :4227-4241
[5]   BOND LENGTHS AND VALENCES IN BaBiO3. [J].
McGuire, N.K. ;
O'Keeffe, M. .
Solid State Communications, 1984, 52 (04) :433-434
[6]  
PRINCE E, 1980, NBS1117 US TECH NOT, P8
[7]   A PROFILE REFINEMENT METHOD FOR NUCLEAR AND MAGNETIC STRUCTURES [J].
RIETVELD, HM .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1969, 2 :65-&
[8]   HIGH-TEMPERATURE SUPERCONDUCTIVITY IN BAPB1-XBIXO3 SYSTEM [J].
SLEIGHT, AW ;
GILLSON, JL ;
BIERSTEDT, PE .
SOLID STATE COMMUNICATIONS, 1975, 17 (01) :27-28
[9]  
TAIBI K, THESIS GRENOBLE
[10]   NEUTRON-DIFFRACTION DETERMINATION OF STRUCTURES OF BA2SBVBIIIIO6 AND BA2BIVBIIIIO6 [J].
THORNTON, G ;
JACOBSON, AJ .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1978, 34 (FEB) :351-354