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Type: Artigo de periódico
Title: ESR of Gd3+ in the intermediate-valence YbInCu4 and its reference compound YInCu4
Author: Rettori, C
Oseroff, SB
Rao, D
Pagliuso, PG
Barberis, GE
Sarrao, J
Fisk, Z
Hundley, M
Abstract: Electron-spin-resonance (ESR) experiments on Gd3+ in the intermediate-valence phase (T < T-v) of YbInCu4 and in its reference compound YInCu4 are interpreted in terms of an enhanced density of states at the Fermi level for the Yb-based compound. The Korringa rate and g shift measured in ESR and the susceptibility data allowed us to extract the electron-electron exchange enhancement factor alpha for the Yb-based compound. The exchange interaction between the Gd3+ local moments and the conduction electrons (c-e) is c-e wave-vector dependent in both compounds.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review B. American Physical Soc, v. 55, n. 2, n. 1016, n. 1020, 1997.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.55.1016
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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