Investigation of the different nature of magnetic hyperfine fields of Ce probes in Gd and matrices
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Hyperfine Interactions
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The magnetic hyperfine fields (MHF) acting on 140Ce probes diluted in Gd
and Co matrices, measured at low temperatures, were compared with those obtained
from first-principles electronic structure calculations. It was found that the origin of
the MHF for these two situations is completely different even though the total MHF
presents similar values on both the cases. For Ce diluted in Gd, the Ce 4f shell is
localized and the orbital MHF dominates. On the other hand, for Ce probes in Co
matrix the Ce 4f shell is delocalized and, as a consequence, the MHF is dominated
by the Fermi-contact contribution.
Como referenciar
MESTNIK FILHO, J.; PEREIRA, L.F.D.; CARBONARI, A.W. Investigation of the different nature of magnetic hyperfine fields of Ce probes in Gd and matrices. Hyperfine Interactions, v. 176, n. 1-3, p. 119-123, 2007. DOI: 10.1007/978-3-540-85320-6_19. Disponível em: http://repositorio.ipen.br/handle/123456789/5125. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.