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Type: Artigo de periódico
Title: Two Superconducting Phases In The Bi-layered Alloys Ce2 Rh1 - X Irx In8
Author: Hering E.N.
Borges H.A.
Ramos S.M.
Fontes M.B.
Baggio-Saitovich E.
Bittar E.M.
Mendonca Ferreira L.
Lora-Serrano R.
Adriano C.
Pagliuso P.G.
Sarrao J.L.
Thompson J.D.
Abstract: We report pressure and temperature dependent electrical resistivity measurements in the Ce2 Rh1 - x Irx In8 alloys. Our results revealed two phases with zero resistance. One of these phases is induced by pressure, occurring for a range of compositions situated near the Rh-rich extreme, consistent with the behavior observed for the pure Ce2 RhIn8 compound. The second transition occurs for intermediate concentrations (x ∼ 0.5 - 0.7), and in sharp contrast with the first transition, is progressively eliminated by the application of pressure. We compare the findings in the Ce2 Rh1 - x Irx In8 alloys to its related CeRh1 - x Irx In5, discussing how the occurrence of the superconducting phases may become unfavorable for the bi-layer alloys due to higher dimensionality and stronger disorder. © 2007 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.physb.2007.10.030
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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