Temperature dependence of the magnetic hyperfine field at sup(140)Ce on Gd sites in GdAg compound
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Hyperfine Interactions
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Resumo
Perturbed gammaYgamma angular correlation technique was used to measure the
magnetic hyperfine field at Gd sites in the intermetallic compound GdAg using the 140LaY140Ce
nuclear probe. A major and well-defined magnetic interaction is observed at 140Ce substituting Gd
sites in GdAg below 130 K, corresponding to a ferromagnetic ordering of Gd moments. The
temperature dependence of magnetic hyperfine field, however, shows a sharp deviation from an
expected Brillouin-like behavior for temperatures below 75 K. This additional magnetic interaction
is believed to result from the polarization of Ce spin moments induced by the magnetic field from
Gd atoms.
Como referenciar
CAVALCANTE, F.H.M.; CARBONARI, A.W.; SAXENA, R.N.; MESTNIK FILHO, J. Temperature dependence of the magnetic hyperfine field at sup(140)Ce on Gd sites in GdAg compound. Hyperfine Interactions, v. 158, n. 1-4, p. 125-129, 2005. DOI: 10.1007/s10751-005-9020-8. Disponível em: http://repositorio.ipen.br/handle/123456789/5528. 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.