Crystal structure of LaVO3 by Rietveld refinement method

被引：9

作者：

Khan, RTA ^{[1
]}

Bashir, J ^{[1
]}

Iqbal, N ^{[1
]}

Khan, MN ^{[1
]}

机构：

[1] PINSTECH, NPD, Neutron Diffract Grp, Islamabad, Pakistan

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 11期

关键词：

crystal structure; LaVO3; Rietveld method;

D O I：

10.1016/j.matlet.2003.10.059

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Structure refinement of LaVO3 was carried out using the whole pattern fitting or Rietveld method, which is a powerful technique for extracting structural information from powder diffraction data. The crystal structure refinement was done using powder X-ray diffraction data measured on a conventional diffractometer. The structure is orthorhombic, with space group Pnma having lattice parameters a = 5.5470(2) Angstrom; b = 7.8401(5) Angstrom; c = 5.5595(4) Angstrom, V = 241.778(7) Angstrom(3), Z = 4, D-x = 7.05 g cm(-3). The structure found is isostructural with GdFeO3 in which all V sites are equivalent and Voctahedra are regular. The results for the structural parameters are in a fairly good agreement with the synchrotron data published earlier. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1737 / 1740

页数：4

共 18 条

[1] STRUCTURAL ASPECTS OF THE CRYSTALLOGRAPHIC MAGNETIC TRANSITION IN LAVO3 AROUND 140-K [J].

BORDET, P ;

CHAILLOUT, C ;

MAREZIO, M ;

HUANG, Q ;

SANTORO, A ;

CHEONG, SW ;

TAKAGI, H ;

OGLESBY, CS ;

BATLOGG, B .

JOURNAL OF SOLID STATE CHEMISTRY, 1993, 106 (02) :253-270

[2] EVOLUTION OF CRYSTALLOGRAPHIC, ELECTRIC AND MAGNETIC-PROPERTIES WITHIN LA1-XSRXVO3 SYSTEM [J].

DOUGIER, P ;

HAGENMULLER, P .

JOURNAL OF SOLID STATE CHEMISTRY, 1975, 15 (02) :158-166

[3] A STUDY OF THE METAL NON-METAL TRANSITION IN LANTHANUM STRONTIUM VANADATE BY HIGH-RESOLUTION ELECTRON-SPECTROSCOPY [J].

EGDELL, RG ;

HARRISON, MR ;

HILL, MD ;

PORTE, L ;

WALL, G .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (16) :2889-2900

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

GLAZER, AM .

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

[5]

HOAN CN, 1995, PHYS REV B, V52, P324

[6]

Howard C J, 1986, M112 AAEC ANSTO LUC

[7] ANTIFERROMAGNETIC NUCLEAR RESPONSE OF V-51 IN LAVO3 AND YVO3 [J].

KIKUCHI, J ;

YASUOKA, H ;

KOKUBO, Y ;

UEDA, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (10) :3577-3580

[8] Prediction of the crystal structures of perovskites using the software program SPuDS [J].

Lufaso, MW ;

Woodward, PM .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 2001, 57 :725-738

[9] STRUCTURAL, ELECTRONIC, AND MAGNETIC-PROPERTIES OF LAXSR1-X VO3 (0.1-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1.0) [J].

MAHAJAN, AV ;

JOHNSTON, DC ;

TORGESON, DR ;

BORSA, F .

PHYSICAL REVIEW B, 1992, 46 (17) :10973-10985

[10]

MAREZIO M, 1985, ACTA CRYSTALLOGR B, V41, P244

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