Magnetism and the absence of superconductivity in the praseodymium–silicon system doped with carbon and boron

Journal Article · Thu Aug 01 00:00:00 EDT 2013 · Journal of Magnetism and Magnetic Materials

DOI:https://doi.org/10.1016/j.jmmm.2013.03.018· OSTI ID:1076606

de la Venta, J.; Basaran, Ali C.; Grant, T.; Gallardo-Amores, J. M.; Ramirez, J. G.; Alario-Franco, M. A.; Fisk, Z.; Schuller, Ivan K.

We searched for new structural, magnetic and superconductivity phases in the Pr–Si system using high-pressure high-temperature and arc melting syntheses. Both high and low Si concentration areas of the phase diagram were explored. Although a similar approach in the La–Si system produced new stable superconducting phases, in the Pr–Si system we did not find any new superconductors. At low Si concentrations, the arc-melted samples were doped with C or B. It was found that addition of C gave rise to multiple previously unknown ferromagnetic phases. Furthermore, X-ray refinement of the undoped samples confirmed the existence of the so far elusive Pr₃Si₂ phase.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
• Sponsoring Organization: U.S. AIR FORCE- OFFICE OF SCIENTIFIC RESEARCH
• OSTI ID: 1076606
• Journal Information: Journal of Magnetism and Magnetic Materials, Vol. 340; ISSN 0304-8853
• Publisher: Elsevier
• Country of Publication: United States
• Language: ENGLISH