Electric Field Gradient at the <math>59Co</math> Nucleus of Ferromagnetic <math>YCo3</math>

Nota de FísicaPublicado

Electric Field Gradient at the $<math>^{59}Co</math>$ Nucleus of Ferromagnetic $<math>YCo_3</math>$

M. B. Fontes; A. P. Guimarães; R.G. Graham; P.C. Riedi

1991

Autores: M. B. Fontes; A. P. Guimarães; R.G. Graham; P.C. Riedi
Tipo: Nota de Física
Status: Publicado
Data de publicação: 1991
Descrição: The structure of <math>YCo_3\,\!</math> is of the <math>PuNi_3\,\!</math> type with three inequivalent cobalt sites in the lattice. The spin echo decay of the <math>^{59}Co\,\!</math> <math>NMR\,\!</math> at <math>43\,\!</math> MHz (18 h site) was found to have an oscillatory component, indicating an electric field gradient at the nucleus equivalent to a quadrupole splitting frequency of <math>210 \,\!</math><math> kHz\,\!</math>. No clear oscillations could be detected at the <math>NMR\,\!</math> frequencies of the <math>3b\,\!</math> and <math>6c\,\!</math> sites but a signal, attributed to nuclei in domain walls, was observed near <math>48 \,\!</math> <math>MHz\,\!</math>.
Ano: 1991
Número: CBPF-NF-054/91
Vínculo com tese: Não
Vínculo com bolsa: Não