Investigation of magnetism and superconductivity in the new alloy of Fe-Se-X and Mg-Ce-X interstitial system

• Grant number: 09/00610-8
• Support Opportunities: Research Grants - Young Investigators Grants
• Start date: June 01, 2009
• End date: March 31, 2011
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Ausdinir Danilo Bortolozo
• Grantee: Ausdinir Danilo Bortolozo
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
• Associated scholarship(s): 10/02755-0 - Investigation of magnetic and superconductor properties in the Ce-Mg-X (X = c, n, B) system, BP.IC; 09/08832-0 - Investigation of magnetism and superconductivity in the new alloy of Fe-Se-X and Mg-Ce-X interstitial system, BP.JP

Abstract

In this work development of new alloy with magnetic and superconductivity properties to Fe-Se-X and Ce-Mg-X (X = B, C or N) will be shown. Preliminary results show that boron content can stabilize the FeSe0.88 superconductor phase and induced superconductivity in the other phases from Fe-Se system. To Mg-Ce system results of structure band calculus show that MgCe phase has a peak in the Density of State at Fermi level to 4f band. This fact suggest high Sommerfeld constant. Preliminary results display Mg2Ce and Mg3Ce exhibit and slope in the electrical resistivity measurement which can be associated with magnetic transition. These materials can be considerate a new heavy fermion. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R.; OLIVEIRA, CELIO J. V.; DOS SANTOS, CARLOS ALBERTO M.; MOURA FILHO, FRANCISCO; MACHADO, ANTONIO JEFFERSON S.. Improvement on the melt-texturing performance of a (Y,Ta)(0.5)BaO3-YBa2Cu3Oy composite with superconductor applications. CERAMICS INTERNATIONAL, v. 41, n. 1, A, p. 843-848, JAN 2015. (13/12729-5, 09/00610-8)

BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R.; DE LIMA, BRUNO S.; DOS SANTOS, CARLOS ALBERTO M.; MACHADO, ANTONIO JEFFERSON S.. Superconducting evidence of a processed Nb2GeC compound under a microwave heating. Materials Chemistry and Physics, v. 194, p. 219-223, JUN 15 2017. (13/12729-5, 09/00610-8)

BORTOLOZO, AUSDINIR D.; CREMASCO, ALESSANDRA; FLORIANO, RICARDO; CONTIERI, RODRIGO J.. Effects of microwave heating in nanolaminated Nb2GeC synthesis. CERAMICS INTERNATIONAL, v. 42, n. 14, p. 16343-16348, NOV 1 2016. (13/12729-5, 09/00610-8)

BORTOLOZO, A. D.; DOS SANTOS, C. A. M.; JARDIM, R. F.; RITTER, C.; DEVISHVILI, A.; ROTTER, M.; GANDRA, F. G.; MACHADO, A. J. S.. Interstitial doping induced superconductivity at 15.3 K in Nb5Ge3 compound. Journal of Applied Physics, v. 111, n. 12, JUN 15 2012. (09/54001-2, 09/00610-8)

BORTOLOZO, A. D.; SANT'ANNA, O. H.; DOS SANTOS, C. A. M.; MACHADO, A. J. S.. Superconductivity at 9.5 K in the Ti2GeC compound. MATERIALS SCIENCE-POLAND, v. 30, n. 2, p. 92-97, 2012. (09/00610-8)

BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R.; OLIVEIRA, CELIO J. V.; DOS SANTOS, CARLOS ALBERTO M.; MOURA FILHO, FRANCISCO; MACHADO, ANTONIO JEFFERSON S.. Improvement on the melt-texturing performance of a (Y,Ta)(0.5)BaO3-YBa2Cu3Oy composite with superconductor applications. CERAMICS INTERNATIONAL, v. 41, n. 1, p. 6-pg., 2015-01-01. (09/00610-8, 13/12729-5)

BORTOLOZO, A. D.; SANT'ANNA, O. H.; DOS SANTOS, C. A. M.; MACHADO, A. J. S.. Superconductivity at 9.5 K in the Ti2GeC compound. MATERIALS SCIENCE-POLAND, v. 30, n. 2, p. 6-pg., 2012-06-01. (09/00610-8)

BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R.; DOS SANTOS, CARLOS ALBERTO M.; MACHADO, ANTONIO JEFFERSON S.. Woodard-Cody anomalous resistivity in a Nb5Ge3C0.3 superconductor compound. PHYSICA B-CONDENSED MATTER, v. 494, p. 82-85, AUG 1 2016. (13/12729-5, 09/00610-8, 09/08832-0)