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Type: Artigo de periódico
Title: Electron spin resonance study of the LaIn3-xSnx superconducting system
Author: Bittar, EM
Adriano, C
Giles, C
Rettori, C
Fisk, Z
Pagliuso, PG
Abstract: The LaIn3-xSnx alloy system is composed of superconducting Pauli paramagnets. For LaIn3 the superconducting critical temperature T-c is approximately 0.7 K and it shows an oscillatory dependence as a function of Sn substitution, presenting its highest value T-c approximate to 6 : 4 K for the LaSn3 end member. The superconducting state of these materials was characterized as being of the conventional type. We report our results for Gd3+ electron spin resonance measurements in the LaIn3-xSnx compounds as a function of x. We show that the effective exchange interaction parameter J(fs) between the Gd3+ 4f local moment and the s-like conduction electrons is almost unchanged by Sn substitution and observe microscopically that LaSn3 is a conventional superconductor.
Country: Inglaterra
Editor: Iop Publishing Ltd
Citation: Journal Of Physics-condensed Matter. Iop Publishing Ltd, v. 23, n. 45, 2011.
Rights: fechado
Identifier DOI: 10.1088/0953-8984/23/45/455701
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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