Investigation of the electronic structure of the cubic spinel Cu1.2Mn1.8O4 using electron energy loss spectroscopy

The room temperature cation valency distribution in the single-phase cubic spinel Cu1.2Mn1.8O4 was extracted using EELS. Analysis of the Cu and Mn L2,3 core-loss edges revealed that all Cu was present as Cu2+ and that a multi-valent Mn ground state existed with the valence fractions: 55% Mn4+, 37% M...

Full description

Saved in:
Bibliographic Details
Published in:Solid state ionics 2008-08, Vol.179 (19-20), p.718-724
Main Authors: MAUNDERS, C, MARTIN, B, WEI, P, PETRIC, A, BOTTON, G
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The room temperature cation valency distribution in the single-phase cubic spinel Cu1.2Mn1.8O4 was extracted using EELS. Analysis of the Cu and Mn L2,3 core-loss edges revealed that all Cu was present as Cu2+ and that a multi-valent Mn ground state existed with the valence fractions: 55% Mn4+, 37% Mn3+ and 8% Mn2+. The pre-peak of the ELNES on the O-K edge confirmed the dominant Mn4+ component whilst the features in the ELNES are identical to those observed in other spinel compounds.
ISSN:0167-2738
DOI:10.1016/j.ssi.2008.04.029