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Titolo:
Crystal growth, structure, and properties of manganese orthovanadate Mn-3(VO4)(2)
Autore:
Wang, XD; Liu, ZQ; Ambrosini, A; Maignan, A; Stern, CL; Poeppelmeier, KR; Dravid, VP;
Indirizzi:
Northwestern Univ, Dept Chem, Evanston, IL 60208 USA Northwestern Univ Evanston IL USA 60208 Dept Chem, Evanston, IL 60208 USA Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA Northwestern Univ Evanston IL USA 60208 ci & Engn, Evanston, IL 60208 USA Inst Sci Mat & Rayonnement, Lab CRISMAT, F-14050 Caen, France Inst Sci Mat& Rayonnement Caen France F-14050 MAT, F-14050 Caen, France
Titolo Testata:
SOLID STATE SCIENCES
fascicolo: 1, volume: 2, anno: 2000,
pagine: 99 - 107
SICI:
1293-2558(200001/02)2:1<99:CGSAPO>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Keywords:
manganese orthovanadate; crystal growth; cation deficient spinel; magnetic susceptibility;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Poeppelmeier, KR Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston,IL 60208 USA Northwestern Univ 2145 Sheridan Rd Evanston IL USA 60208
Citazione:
X.D. Wang et al., "Crystal growth, structure, and properties of manganese orthovanadate Mn-3(VO4)(2)", SOLID ST SC, 2(1), 2000, pp. 99-107

Abstract

Manganese orthovanadate Mn-3(VO4)(2) single crystals were grown for the first time from a flux of MnO/V2O5/MoO3. The flux and oxygen partial pressureused are the key factors for the crystal growth and prevention of the oxidation of Mn2+ and the reduction of V5+ during the crystallization process. The reduction and oxidation chemistry of Mn-3(VO4)(2) was studied. Mn-3(VO4)(2), is isostructural with magnesium orthovanadate Mg-3(VO4)(2), orthorhombic, space group Cmca, a = 6.247(1) Angstrom, b = 11.728(2) Angstrom, c = 8.491(2) Angstrom and Z = 4, as determined by single crystal X-ray diffraction. Because it is a Mn2+ deficient spinel structure there are two-dimensional sheets of Mn2+O6 octahedra within the structure which show unusual ferrimagnetic properties. (C) 2000 Editions scientifiques et medicales Elsevier SAS. All rights reserved.

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Documento generato il 01/04/20 alle ore 02:21:06