Superconductivity and magnetism on flux-grown single crystals of NiBi${}_{3}$

Superconductivity and magnetism on flux-grown single crystals of NiBi $_{3}$

B. Silva, R. F. Luccas, N. M. Nemes, J. Hanko, M. R. Osorio, P. Kulkarni, F. Mompean, M. García-Hernández, M. A. Ramos, S. Vieira, and H. Suderow

Phys. Rev. B 88, 184508 – Published 13 November 2013

Abstract

We present resistivity, magnetization, and specific-heat measurements on flux-grown single crystals of NiBi $_{3}$ . We find typical behavior of a type-II superconductor, with, however, a sizable magnetic signal in the superconducting phase. There is a hysteretic magnetization characteristic of a ferromagnetic compound. By following the magnetization as a function of temperature, we find a drop at temperatures corresponding to the Curie temperature of ferromagnetic amorphous Ni. Thus, we assign the magnetism in NiBi $_{3}$ crystals to amorphous Ni impurities.

Received 13 August 2013

DOI:https://doi.org/10.1103/PhysRevB.88.184508

Authors & Affiliations

B. Silva¹, R. F. Luccas¹, N. M. Nemes^2,3, J. Hanko¹, M. R. Osorio¹, P. Kulkarni¹, F. Mompean^4,5, M. García-Hernández^4,5, M. A. Ramos^1,5, S. Vieira^1,5, and H. Suderow^1,5,*

¹Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condensada, Instituto Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
²Departamento de Fisica Aplicada III, GFMC, Universidad Complutense de Madrid, E-28040 Madrid, Spain
³Unidad Asociada Laboratorio de heteroestructuras con aplicación en espintrónica, UCM, CSIC, E-28049 Madrid, Spain
⁴Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas (ICMM-CSIC), Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
⁵Unidad Asociada de Bajas Temperaturas y Altos Campos Magnéticos, UAM, CSIC, Cantoblanco, E-28049 Madrid, Spain

^*Corresponding author: hermann.suderow@uam.es

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Issue

Vol. 88, Iss. 18 — 1 November 2013

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