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Magnetic properties of complex systems with non-trivial topology

Grant number: 18/11364-7
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): December 01, 2018
Status:Discontinued
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Pascoal Jose Giglio Pagliuso
Grantee:Jean Carlo Souza
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:17/10581-1 - Emergent phenomena in reduced dimension systems, AP.TEM
Associated scholarship(s):20/12283-0 - Scanning tunneling microscopy in topological nontrivial compounds, BE.EP.DR

Abstract

In this project, we propose to study the role of the topology in the Condensed MatterPhysics. Particularly, we propose to study two different applications: new topological phases of matter and magnetic topological defects. In our study of topological phases of matter, we want to synthesize three dimensional topological insulators (3D TIs), Dirac semimetals and Weyl semimetals. The aim of this project is to investigate if the Electron Spin Resonance (ESR), which is a microscopic technique, could be useful to complement ARPES measurements. This hypothesis was first pointed by previous works of this group in the half-Heusler family and, latter, by the student master's degree dissertation. Specifically, we want to investigate if the non-trivial topology inside the half-Heusler family reflects in the Crystalline Electrical Field (CEF) effects and in the ESR line shape. In the skyrmions case, we want to synthesize magnetic compounds which have this topological defect in intermetallic nanowires using the metallic-flux nanonucleation (MFNN) technique that was developed in another project by our group and other groups of Unicamp. Besides, our goal is to do transport measurements in a single nanowire, as well ESR measurements in the matrix, to investigate the topological Hall Effect. (AU)

Scientific publications (6)
(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)
CHRISTOVAM, D. S.; FREITAS, G. S.; PIVA, M. M.; SOUZA, J. C.; MALCOLMS, M. O.; CANTON, O. L.; LEAO, J. B.; RATCLIFF, W.; LYNN, J. W.; ADRIANO, C.; PAGLIUSO, P. G. Evolution of the magnetic properties in the antiferromagnet Ce2RhIn8 simultaneously doped with Cd and Ir. Physical Review B, v. 102, n. 19 NOV 20 2020. Web of Science Citations: 0.
SOUZA, J. C.; ROSA, P. F. S.; SICHELSCHMIDT, J.; CARLONE, M.; VENEGAS, P. A.; MALCOLMS, M. O.; MENEGASSO, P. M.; URBANO, R. R.; FISK, Z.; PAGLIUSO, P. G. Metallic islands in the Kondo insulator SmB6. PHYSICAL REVIEW RESEARCH, v. 2, n. 4 NOV 3 2020. Web of Science Citations: 0.
ROSA, PRISCILA; XU, YUANFENG; RAHN, MAREIN; SOUZA, JEAN; KUSHWAHA, SATYA; VEIGA, LARISSA; BOMBARDI, ALESSANDRO; THOMAS, SEAN; JANOSCHEK, MARC; BAUER, ERIC; CHAN, MUN; WANG, ZHIJUN; THOMPSON, JOE; HARRISON, NEIL; PAGLIUSO, PASCOAL; BERNEVIG, ANDREI; RONNING, FILIP. Colossal magnetoresistance in a nonsymmorphic antiferromagnetic insulator. NPJ QUANTUM MATERIALS, v. 5, n. 1 JUL 24 2020. Web of Science Citations: 0.
PIVA, M. M.; TARTAGLIA, R.; FREITAS, G. S.; SOUZA, J. C.; CHRISTOVAM, D. S.; THOMAS, S. M.; LEAO, J. B.; RATCLIFF, W.; LYNN, J. W.; LANE, C.; ZHU, J-X; THOMPSON, J. D.; ROSA, P. F. S.; ADRIANO, C.; GRANADO, E.; PAGLIUSO, P. G. Electronic and magnetic properties of stoichiometric CeAuBi2. Physical Review B, v. 101, n. 21 JUN 18 2020. Web of Science Citations: 0.
SOUZA, J. C.; JESUS, C. B. R.; LESSEUX, G. G.; ROSA, P. F. S.; URBANO, R. R.; PAGLIUSO, P. G. Crystalline electric field study in a putative topologically trivial rare-earth doped YPdBi compound. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 31, n. 46 NOV 20 2019. Web of Science Citations: 0.
MERCENA, S. G.; MENDONCA, E. C.; MENESES, C. T.; SILVA, L. S.; DUQUE, J. G. S.; JESUS, C. B. R.; SOUZA, J. C.; PAGLIUSO, P. G. Complex magnetic behavior along the Gdln (NixCu1-x)(4) (0.00 <= x <= 1.00) series of compounds. Journal of Applied Physics, v. 125, n. 6 FEB 14 2019. Web of Science Citations: 1.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.