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Type: Artigo de periódico
Title: Synthesis and Characterization of BaFe2As2 Single Crystals Grown by In-flux Technique
Author: Garitezi, TM
Adriano, C
Rosa, PFS
Bittar, EM
Bufaical, L
de Almeida, RL
Granado, E
Grant, T
Fisk, Z
Avila, MA
Ribeiro, RA
Kuhns, PL
Reyes, AP
Urbano, RR
Pagliuso, PG
Abstract: We report a detailed characterization of BaFe2As2 single crystals grown by a metallic In-flux technique, an alternative to well-established growth routes using FeAs self- or Sn-flux. Electrical resistivity, magnetic susceptibility, nuclear magnetic resonance, and energy dispersive spectroscopy measurements showed no evidence of flux incorporation. More importantly, our results demonstrate that BaFe2As2 single crystals grown by In-flux have extremely high quality. To explore the efficiency of the In-flux growth method, we have also prepared nearly optimally doped superconducting samples of Ba(Fe1 -x M (x) )(2)As-2 (M = Co, Cu, Ni, and Ru). Among other interesting features, this alternative chemical substitution method has led to enhancement of the maximum T (c) for most dopings.
Subject: Superconductivity
Crystal growth
Country: EUA
Editor: Springer
Rights: fechado
Identifier DOI: 10.1007/s13538-013-0144-z
Date Issue: 2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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