A POWDER NEUTRON-DIFFRACTION STUDY OF LAMBDA-MANGANESE-DIOXIDE AND GAMMA-MANGANESE-DIOXIDE AND OF LIMN2O4

Authors
FONG C KENNEDY BJ ELCOMBE MM
Citation
C. Fong et al., A POWDER NEUTRON-DIFFRACTION STUDY OF LAMBDA-MANGANESE-DIOXIDE AND GAMMA-MANGANESE-DIOXIDE AND OF LIMN2O4, Zeitschrift fur Kristallographie, 209(12), 1994, pp. 941-945
Citations number
21
Categorie Soggetti
Crystallography
Journal title
Zeitschrift fur Kristallographie → ACNP
ISSN journal
00442968
Volume
209
Issue
12
Year of publication
1994
Pages
941 - 945
Database
ISI
SICI code
0044-2968(1994)209:12<941:APNSOL>2.0.ZU;2-P
Abstract
The structure of two polymorphs of manganese dioxide, lambda-MnO2 and gamma-MnO2 and the spinel oxide LiMn2O4 have been refined by Rietveld analysis of powder neutron diffraction data. lambda-MnO2, Fd3m, a = 8. 0639(3) Angstrom, R(Bragg) = 1.81%, gamma-MnO2, Pnam, a = 9.3229(11) A ngstrom, b = 4.4533(7) Angstrom, c = 2.8482(3) Angstrom, R(Bragg) 1.34 % and LiMn2O4, Fd3m, a = 8.2468(2) Angstrom, R(Bragg) = 2.33%.