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Type: Artigo de periódico
Title: Physical Properties And Magnetic Structure Of The Intermetallic Cecubi2 Compound
Author: Adriano C.
Rosa P.F.S.
Jesus C.B.R.
Mardegan J.R.L.
Garitezi T.M.
Grant T.
Fisk Z.
Garcia D.J.
Reyes A.P.
Kuhns P.L.
Urbano R.R.
Giles C.
Pagliuso P.G.
Abstract: In this work we combine magnetization, pressure dependent electrical resistivity, heat capacity, Cu63 nuclear magnetic resonance (NMR), and x-ray resonant magnetic scattering experiments to investigate the physical properties of the intermetallic CeCuBi2 compound. Our single crystals show an antiferromagnetic ordering at TN≃16 K and the magnetic properties indicate that this compound is an Ising antiferromagnet. In particular, the low temperature magnetization data revealed a spin-flop transition at T=5 K when magnetic fields of about 5.5 T are applied along the c axis. Moreover, the x-ray magnetic diffraction data below TN revealed a commensurate antiferromagnetic structure with propagation wave vector (0012) with the Ce3+ moments oriented along the c axis. Furthermore, our heat capacity, pressure dependent resistivity, and temperature dependent Cu63 NMR data suggest that CeCuBi2 exhibits a weak heavy fermion behavior with strongly localized Ce3+ 4f electrons. We thus discuss a scenario in which both the anisotropic magnetic interactions between the Ce3+ ions and the tetragonal crystalline electric field effects are taking into account in CeCuBi2.
Editor: American Physical Society
Citation: Physical Review B - Condensed Matter And Materials Physics. American Physical Society, v. 90, n. 23, p. - , 2014.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.90.235120
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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