Study of Co2+ in different crystal field environments

AUTOR(ES)

Foglio, M. E., Barberis, G. E.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2006-03

RESUMO

We consider the ESR of Co2+ in different environments: in an regular octahedron (Co2+ in a MgO crystal), in a deformed octahedron (Co2+ in single crystals and powder samples of NH4NiPO4.6H2O) or in a trigonal bipyramid (Co2+ in powders of Co2(OH)PO4 and Co2(OH)AsO4). We study the effect of the non-cubic crystal fields in the ESR of Co2+ in the deformed octahedron, by employing the normal modes of this structure to simplify the systematic study of the effect of these fields. A similar study was done for the deformed trigonal bipiramid, and it was necessary to derive the normal modes of this complex that are relevant to our problem.

Documentos Relacionados

• Mn2+ and Co2+ toxicity in chlorophyll biosynthesis
• Aplicação de Al-PILC na adsorção de Cu2+, Ni2+e Co2+ utilizando modelos físico-químicos de adsorção
• Estudo por ressonancia paramagnetica eletronica do ion Co2+ na matriz acetato de niquel tetra hidratado
• Monte Carlo study of the anisotropic three-dimensional Heisenberg model in a crystal field
• THE CRYSTAL STRUCTURE AND TWINNING OF Co2S3