Scholarship 19/26247-9 - Magnetismo, Supercondutividade - BV FAPESP
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Emergent phenomena in Bi-based systems with low dimensionality

Grant number: 19/26247-9
Support Opportunities:Scholarships in Brazil - Doctorate
Start date until: July 01, 2020
End date until: February 29, 2024
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Pascoal Jose Giglio Pagliuso
Grantee:Gabriel Silva Freitas
Host 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.ESP
Associated scholarship(s):22/09240-3 - High-resolution thermal expansion measurements in Ce and U-based intermetallic compounds, BE.EP.DR

Abstract

In this work, we propose to investigate emergent phenomena such as unconventional superconductivity, complex magnetism and nontrivial topology in different Bismuth (Bi) systems with low dimensionality (2D and 1D). To achieve this goal, we will develop a systematic of synthesis of several classes of these compounds, using the metallic flux growth technique for the synthesis of the single crystal with layered crystal structures (quasi-2D), as well as the metallic flux nanonucleation (MFNN) (Patent of our thematic group - national BR 10 2014 019794 0 and international WO2016023089) to obtain nanowires (1D) of these compounds. After the synthesis, we will study the structural, elementary, magnetic, electronic and thermodynamic properties to highlight the effects of low dimensional structures on the physical properties of these materials.Specifically, we will work with the RMBi2, RM2Bi families (R = Rare Earth, M = Transition Metal) and Sb1-xBix alloys investigating both a possible state of unconventional superconductivity and the emergence of nontrivial topological states and complex magnetism (magnetic frustration, multiple wave vector ordering, multipolar orders). These characteristics come from the competition between anisotropic magnetic interactions, Crystalline Electric Field (CEF) effects, Kondo effect, Spin-orbit interaction and electronic structure with nontrivial topology possibly present in these families and strongly affected by the low dimensionality of the systems. (AU)

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Scientific publications (5)
(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)
FREITAS, G. S.; PIVA, M. M.; GROSSI, R.; JESUS, C. B. R.; SOUZA, J. C.; CHRISTOVAM, D. S.; OLIVEIRA, N. F.; LEAO, J. B.; ADRIANO, C.; LYNN, J. W.; et al. Tuning the crystalline electric field and magnetic anisotropy along the CeCuBi2-xSbx series. Physical Review B, v. 102, n. 15, . (17/10581-1, 17/25269-3, 18/11364-7, 15/16191-5, 19/04196-3, 15/15665-3, 19/26247-9)
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.; et al. Evolution of the magnetic properties in the antiferromagnet Ce2RhIn8 simultaneously doped with Cd and Ir. Physical Review B, v. 102, n. 19, . (19/04196-3, 06/60440-0, 18/11364-7, 17/10581-1, 09/09247-3, 19/26247-9, 18/26512-1, 15/15665-3)
SOUZA, J. C.; CARLONE, M.; LESSEUX, G. G.; PIZZI, H. B.; FREITAS, G. S.; URBANO, R. R.; VENEGAS, A.; PAGLIUSO, P. G.. Magnetic interactions of 4f electrons in the topological insulator chalcogenide Bi2Se3. PHYSICAL REVIEW B, v. 106, n. 23, p. 9-pg., . (20/12283-0, 22/09240-3, 12/04870-7, 19/26247-9, 17/10581-1, 18/11364-7)
FREITAS, G. S.; PIVA, M. M.; GROSSI, R.; JESUS, C. B. R.; SOUZA, J. C.; CHRISTOVAM, D. S.; OLIVEIRA, N. F.; LEAO, J. B.; ADRIANO, C.; LYNN, J. W.; et al. Tuning the crystalline electric field and magnetic anisotropy along the CeCuBi2-xSbx series. PHYSICAL REVIEW B, v. 102, n. 15, p. 7-pg., . (15/16191-5, 17/25269-3, 17/10581-1, 18/11364-7, 19/26247-9, 15/15665-3, 19/04196-3)
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.; et al. Evolution of the magnetic properties in the antiferromagnet Ce2RhIn8 simultaneously doped with Cd and Ir. PHYSICAL REVIEW B, v. 102, n. 19, p. 9-pg., . (18/26512-1, 06/60440-0, 17/10581-1, 09/09247-3, 18/11364-7, 19/26247-9, 15/15665-3, 19/04196-3)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FREITAS, Gabriel Silva. Materiais quânticos complexos na estrutura cristalina dos 112. 2024. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin Campinas, SP.

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