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Type: Artigo
Title: Evolution of the magnetic properties along the RCuBi2 (R=Ce, Pr, Nd, Gd, Sm) series of intermetallic compounds
Author: Jesus, C. B. R.
Piva, M. M.
Rosa, P. F. S.
Adriano, C.
Pagliuso, P. G.
Abstract: In this paper, the evolution of the magnetic properties along the series of intermetallic compounds RCuBi2 (R = Ce, Pr, Nd, Gd, Sm) is discussed. These compounds crystallize in a tetragonal ZrCuSi2 (P4/nmm) structure, and our single crystals of RCuBi2 grown from Bi-flux show no evidence for Cu-deficiency [Ye et al., Acta Crystallogr. C 52, 1325 (1996)] as previously reported for R = Ce. For R = Ce, Pr, Gd, and Sm, we found an antiferromagnetic ordering at TN ∼ 16 K, 4.2 K, 13.6 K, and 4.9 K, respectively. For R = Nd, we saw no evidence for a magnetic phase transition down to T = 2 K. These values of TN clearly show a dramatic breakdown of the De Gennes factor in this series. We discuss our data taken into account the tetragonal crystalline electrical field and the anisotropic Ruderman-Kittel-Kasuya-Yoshida magnetic interaction between the R-ions in this family of compounds.
Subject: Antiferromagnetismo
Compostos de bismuto
Compostos intermetálicos
Country: Estados Unidos
Editor: AIP Publishing
Citation: Journal Of Applied Physics. Amer Inst Physics, v. 115, n. 17, 2014.
Rights: aberto
Identifier DOI: 10.1063/1.4860657
Date Issue: 2014
Appears in Collections:IFGW - Artigos e Outros Documentos

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