Mössbauer Studies on the Intermetallic Pseudo-Ternary <math>Ce(Ru1-xFex)2Ge2</math> Compound <math>(0 x 1)</math>

Nota de FísicaPublicado

Mössbauer Studies on the Intermetallic Pseudo-Ternary $<math>Ce(Ru_{1-x}Fe_{x})_2Ge_2</math>$ Compound $<math>(0 \le x \le 1)</math>$

M. B. Fontes; E.C. Passsamani; M. El Massalami; E. M. B. Saitovitch

1994

Autores: M. B. Fontes; E.C. Passsamani; M. El Massalami; E. M. B. Saitovitch
Tipo: Nota de Física
Status: Publicado
Data de publicação: 1994
Descrição: <math>^{57}Fe\,\!</math> Mössbauer measurements on the <math>Ce(Ru_{1-x}Fe_{x})_2Ge_2\,\!</math> series of compounds <math>(0 \le x \le 1.0)\,\!</math> were performed at <math>300 K\,\!</math> and <math>4.2 K.\,\!</math> All samples showed a quadrupolar interaction with an asymmetry that was due to texture effects. Moreover, at <math>4.2 K,\,\!</math> and for <math>x < 0.5,\,\!</math> the observed spectra could be well fitted with a small transferred hyperfine field <math>(< 1 T)\,\!</math> that decreased with Fe-concentration. This agrees with our ac susceptibility observation that the localized character of the Ce-moment was systematically decreasing with Fe concentration. For <math>x > 0.5,\,\!</math> no transferred hyperfine field was observed, consistent with the absence of localized Ce-moments supported by our magnetization measurements.
Ano: 1994
Número: CBPF-NF-056/94
Vínculo com tese: Não
Vínculo com bolsa: Não