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Type: Artigo de periódico
Title: Esr Of Gd3+ In The Kondo-lattice Compound Ybagcu4 And Its Reference Compounds Ragcu4 (r=y,lu)
Author: Pagliuso P.G.
Rettori C.
Oseroff S.B.
Sarrao J.
Fisk Z.
Cornelius A.
Hundley M.F.
Abstract: Low-temperature (T<30 K) electron-spin-resonance (ESR) experiments of Gd3+ diluted in the Kondo-lattice compound YbAgCu4 and its reference compounds YAgCu4 and LuAgCu4 are interpreted in terms of an enhanced density of states at the Fermi level for the Yb-based compound. The results of susceptibility and ESR (Korringa rate and g-shift) measurements show negligible electron-electron exchange enhancement for all the studied compounds. The exchange interaction between the Gd3+ local moment and the conduction electrons (c-e) is c-e wave vector dependent in all three compounds.
Rights: aberto
Identifier DOI: 
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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