Silver niobium trioxide, AgNbO3

被引：67

作者：

Fábry, J

Zikmund, Z

Kania, A

Petrícek, V

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 16253 6, Czech Republic

[2] Acad Sci Czech Republ, Inst Phys, CZ-18040 Prague 8, Czech Republic

[3] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 2000年 / 56卷 / 08期

关键词：

D O I：

10.1107/S0108270100006806

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The present structure determination of silver niobium trioxide at 291 K was performed on a twinned single crystal with a predominant presence [about 93 (1)%] of one twin domain. The sample contained traces of V (about 1 atomic %). This study confirms that the room-temperature phase of AgNbO3 is isostructural with the room-temperature phase of NaNbO3, i.e. it is a tilted perovskite. Structural deviation in AgNbO3 from centrosymmetry was not detected in this study and its structure was refined in Pbcm, though a previous study indicated ferroelectricity below 350 K, in contrast with NaNbO3.

引用

页码：916 / 918

页数：3

共 21 条

[1] EXTINCTION WITHIN LIMIT OF VALIDITY OF DARWIN TRANSFER EQUATIONS .1. GENERAL FORMALISMS FOR PRIMARY AND SECONDARY EXTINCTION AND THEIR APPLICATION TO SPHERICAL CRYSTALS [J].

BECKER, PJ ;

COPPENS, P .

ACTA CRYSTALLOGRAPHICA SECTION A, 1974, A 30 (MAR) :129-147

[2] THE INORGANIC CRYSTAL-STRUCTURE DATA-BASE [J].

BERGERHOFF, G ;

HUNDT, R ;

SIEVERS, R ;

BROWN, ID .

JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES, 1983, 23 (02) :66-69

[3]

Burnett M.N., 1996, ORTEP-III: Oak Ridge Thermal Ellipsoid Plot Program for Crystal Structure Illustrations

[4]

CROSS LE, 1955, PHILOS MAG, V46, P453

[5]

FABRY J, 1998, TILT

[6] CLASSIFICATION OF TILTED OCTAHEDRA IN PEROVSKITES [J].

GLAZER, AM .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1972, B 28 (NOV15) :3384-&

[7] STUDIES OF LATTICE-PARAMETERS AND DOMAINS IN PHASE-TRANSITIONS OF NANBO3 [J].

GLAZER, AM ;

MEGAW, HD .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 1973, A 29 (SEP1) :489-+

[8] NEUTRON POWDER PROFILE REFINEMENT OF FERROELECTRIC AND ANTIFERROELECTRIC CRYSTAL-STRUCTURES - SODIUM NIOBATE AT 22 DEGREES C [J].

HEWAT, AW .

FERROELECTRICS, 1974, 7 (1-4) :83-85

[9]

JONA F, 1962, FERROELECTRIC CRYSTA, P176

[10]

KANIA A, 1984, FERROELECTRICS, V52, P265, DOI 10.1080/00150198408209394

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