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|Type:||Artigo de periódico|
|Title:||Electron Spin Resonance Of Nd3+ And Yb3+ In Cdfe4p12|
|Abstract:||Electron spin resonance experiments, at low temperature (1.64.2 K), of Nd3+ and Yb3+ in the small-gap semiconductor CeFe4P12 show cubic-crystal-field 8(2) and 6 ground states, respectively. The sign and ratio between the fourth and sixth order cubic-crystal-field parameters were found to be in agreement with those previously determined for Dy3+ and Er3+ in the same compound. Dysonian resonance line shapes, characteristic of metallic hosts, were observed in all our experiments. However, no exchange interaction effects between the localized rare-earth magnetic moment and conduction electrons were detected. This result supports the idea that in CeFe4P12 there is a strong 4f-conduction-electron hybridization with an open gap in the density of states at the Fermi level. © 1994 The American Physical Society.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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