Ta5GeB2: New T-2 superconductor phase

Author(s)

Correa, L. E. ^[1] ; da Luz, M. S. ^{[1, 2]} ; de Lima, B. S. ^[1] ; Cigarroa, O. V. ^[1] ; da Silva, A. A. A. P. ^[1] ; Coelho, G. C. ^[1] ; Fisk, Z. ^[3] ; Machado, A. J. S. ^[1]

Affiliation

^[1] Univ Sao Paulo, Escola Engn Lorena, BR-12602810 Lorena, SP - Brazil

^[2] Univ Fed Triangulo Mineiro, BR-38066200 Uberaba, MG - Brazil

^[3] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 - USA

• Document type: Journal article
• Source: Journal of Alloys and Compounds; v. 660, p. 44-47, MAR 5 2016.
• Web of Science Citations: 3

Abstract

We report superconductivity at T-C similar to 3.8 K in the new ternary phase Ta5GeB2. Bulk superconductivity is confirmed by magnetization, electrical resistivity and heat capacity measurements, the results showing conventional bulk superconductivity. Ta5GeB2 is a further example of a stoichiometric T-2 phase with Cr5B3 prototype structure. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 11/21884-9 - Study of the superconducting properties of T2 phase on the Ta-Ge-B system
• Grantee: Lucas Eduardo Corrêa
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 14/01581-0 - Study of stabilization of the Th1-xMxB12 phase with UB12 prototype and experimental investigation of physical properties
• Grantee: Sérgio Tuan Renosto
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 11/05961-3 - Study of superconductivity in diboride and dichalcogenates of transition metal (MeB2 and MeX2) with AlB2 prototype and its variations
• Grantee: Sérgio Tuan Renosto
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 13/20181-0 - Evolution of topological Kondo insulating behavior in Sm1xRxB6 (r = Sr, Yb)
• Grantee: Priscila Ferrari Silveira Rosa
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor