CRYSTAL-STRUCTURE OF PB2COWO6 IN THE CUBIC PHASE

被引：27

作者：

BALDINOZZI, G ^{[1
]}

SCIAU, P ^{[1
]}

LAPASSET, J ^{[1
]}

机构：

[1] UNIV MONTPELLIER 2,CNRS,LA 233,DYNAM PHASES CONDENSEES GRP,F-34060 MONTPELLIER,FRANCE

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1992年 / 133卷 / 01期

关键词：

D O I：

10.1002/pssa.2211330103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystal structure of the cubic phase of the complex perovskite Pb2CoWO6 is investigated by single crystal X-ray diffraction and neutron powder diffraction. Both experiments lead to the same conclusion. The Pb atom is not on the special position of the prototype structure, but displaced from this position along the [110] directions leading to twelve local disorder positions. In addition to this disorder, 0 atoms are distributed on rings lying in planes orthogonal to Co-O-W directions.

引用

页码：17 / 23

页数：7

共 13 条

[1]

BERAR JF, 1992, 2ND APD C NIST GAITH

[2] X-RAY AND NEUTRON-DIFFRACTION STUDIES OF THE DIFFUSE PHASE-TRANSITION IN PBMG1/3NB2/3O3 CERAMICS [J].

BONNEAU, P ;

GARNIER, P ;

CALVARIN, G ;

HUSSON, E ;

GAVARRI, JR ;

HEWAT, AW ;

MORELL, A .

JOURNAL OF SOLID STATE CHEMISTRY, 1991, 91 (02) :350-361

[3]

Brixel W., 1985, Japanese Journal of Applied Physics, Supplement, V24, P242

[4] CRYSTAL-STRUCTURE OF BATIO3 IN THE CUBIC PHASE [J].

ITOH, K ;

ZENG, LZ ;

NAKAMURA, E ;

MISHIMA, N .

FERROELECTRICS, 1985, 63 (1-4) :29-37

[5]

KIZHAEV SA, 1966, FIZ TVERD TELA+, V8, P1554

[6] INCOMMENSURATE STRUCTURES IN HIGHLY ORDERED COMPLEX PEROVSKITES PB(CO1/2W1/2)O3 AND PB(SC1/2TA1/2)O3 [J].

RANDALL, CA ;

MARKGRAF, SA ;

BHALLA, AS ;

BABAKISHI, K .

PHYSICAL REVIEW B, 1989, 40 (01) :413-416

[7] ELECTRON-DIFFRACTION STUDY OF THE PB2COWO6 PHASES [J].

SCIAU, P ;

KRUSCHE, K ;

BUFFAT, PA ;

SCHMID, H .

FERROELECTRICS, 1990, 107 :235-240

[8] X-RAY STUDY OF PHASE-TRANSITIONS OF THE ELPASOLITE-LIKE ORDERED PEROVSKITE PB2COWO6 [J].

SCIAU, P ;

CALVARIN, G ;

SUN, BN ;

SCHMID, H .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1992, 129 (02) :309-321

[9] REVISED EFFECTIVE IONIC-RADII AND SYSTEMATIC STUDIES OF INTERATOMIC DISTANCES IN HALIDES AND CHALCOGENIDES [J].

SHANNON, RD .

ACTA CRYSTALLOGRAPHICA SECTION A, 1976, 32 (SEP1) :751-767

[10]

SHELDRICK GM, 1976, SHELX PROGRAM CRYSTA

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