Name:
SERGIO GARCIA MAGALHAES
Academic degree:
PhD (Theoretical Condensed Matter Physics) Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, 1993.
Professional Adress:
Instituto de Física, Universidade Federal do Rio Grande do Sul 91501-970, Porto Alegre, Brazil.
e-mail: sgmagal@gmail.com
Position:
Full Professor at the Physics Institute, Universidade Federal do Rio Grande do Sul, Brazil
Vice-Director of the Physics Institute, Universidade Federal do Rio Grande do Sul, Brazil.
Supervising experience:
PhD (7 thesis), Master (5 dissertations).
Presently supervising 2 PhD thesis.
Research interests:
Strongly correlated electronic systems, quantum magnetism, superconductivity, disorder, frustration.
Publications in refereed international journals: 120 articles
Publications 2020-2025:
1. A. U. RAHMAN; A. AHMAD; M. H. HELAL; M. M. HESSIEN; G. RAHMAN; S. G. MAGALHAES. Defect induces room temperature ferromagnetism and half-metallicity in Zr2CO2 MXene: Ab-initio calculations. European Physical Journal Plus, v. 140, p. 35, 2025.
2. A. U. ABUDALLH; A. U. RAHMAN; M. A. TUMELERO; L. JUJIAN; S. G. MAGALHAES; M. A. AMIN; G. H. GUO. Exploring room-temperature anti-ferromagnetism in newly predicted 2D MBene M4B6 (M: Cr, Mn, Fe) monolayer using first-principles calculations. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v. 27, p. 8833, 2025.
3. L. C. PRAUCHNER; E. J. CALEGARI; J. FAUNDEZ; S. G. MAGALHAES. Interplay between the charge density wave phase and a pseudogap under antiferromagnetic correlations. PHYSICS LETTERS A, v. 529, p. 130093, 2025.
4. S. G. MAGALHAES; M. A. TUMELERO; S. NICOLODI. XI Brazilian School of Magnetism: The resumption. BRAZILIAN JOURNAL OF PHYSICS EDUCATION, v. 46, p. e20240170, 2024.
5. J. FAÚNDEZ; S. G. MAGALHAES; P. S. RISEBOROUGH; S. E. REYES-LILLO. Effect of a flat band on a multiband two-dimensional Lieb lattice with intra- and interband interactions. JOURNAL OF PHYSICS-CONDENSED MATTER v. 36, p. 195601, 2024.
6. R. ERICHSEN; A. SILVEIRA, A.; S. G. MAGALHAES. Blume-Emery-Griffiths model on Random Graphs. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, v. 614, p. 128522, 2023.
7. F. M. ZIMMER; R. MOURÃO; M. SCHMIDT; M. TUMELERO; S. G. MAGALHAES. Enhancement of the Magnetocaloric Effect in Geometrically Frustrated Cluster Spin Glass Systems. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 35, p. 315801, 2023.
8. A. C. LAUSSMANN; E. J. CALEGARI; J. FAUNDEZ; P. S. Riseborough; S. G. MAGALHAES. Magnetic transitions induced by pressure and magnetic field in a two-orbital 5f-electron model in cubic and tetragonal lattices. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v. 560, p. 169531, 2022.
9. X. YUAN; P. S. RISEBOROUGH; E. J. CALEGARI; S. G. MAGALHAES. Enhanced Spin Orbit Interaction in Actinides. JOURNAL OF PHYSICS. CONFERENCE SERIES (PRINT), v. 2164, p. 012059, 2022.
10. F. M. ZIMMER; C. SILVA; M. SCHMIDT; S. G. MAGALHAES. Role of frustration in a weakly disordered checkerboard lattice. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v. 554, p. 169273, 2022.
11. R. ERICHSEN; A. SILVEIRA; S. G. MAGALHAES. Ising spin glass in a random network with a Gaussian random field. PHYSICAL REVIEW E, v. 103, p. 022133, 2021.
12. A. SILVEIRA; R. Erichsen; S. G. MAGALHAES. Geometrical frustration and cluster spin glass with random graphs. PHYSICAL REVIEW E, v. 103, p. 052110, 2021.
13. X. YUAN; P. S. Riseborough; E. J. CALEGARI; S. G. MAGALHAES. Enhanced Spin-Orbit Coupling in the Underscreened Anderson Lattice Model of Itinerant 5f Metals. Electronic Structure, v. 3, p. 024009, 2021.
14. J. FAUNDEZ; S. G. MAGALHAES; E. J. CALEGARI; P. S. RISEBOROUGH. Multicritical points in a model for 5f-electron systems under pressure and magnetic field. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 33, p. 295801, 2021.
15. C. A. AGUIRRE; J. FAÚNDEZ; S. G. MAGALHAES; A. S. MOSQUERA-POLO; J. BARBA-ORTEGA. Thermo-Magnetic Signature of a Superconducting Multi-band Square with Rough Surface. Journal of Low Temperature Physics, v. 204, p. 95-110, 2021.
16. M. SCHMIDT; M. V. ROMITTI; S. G. MAGALHAES; F. M. ZIMMER. Field-induced glassy state in disordered cluster antiferromagnets. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 32, p. 035805, 2020.
17. S. G. MAGALHAES; A. C. LAUSMANN; E. J. CALEGARI; P. S. Riseborough. Unfolding of antiferromagnetic phases and multicritical points in a two-orbital model for Uranium compounds under pressure and magnetic field. PHYSICAL REVIEW B, v. 101, p. 064407, 2020.
18. D. M. LALIS; E. J. CALEGARI; L. C. PRAUCHNER; S. G. MAGALHAES. Effects of a k-dependent Hybridization on the Fermi Surface of an Extended $d-p$ Hubbard Model. PHILOSOPHICAL MAGAZINE, v. 100, p. 1289-1300, 2020.
19. F. MESQUITA; S. G. MAGALHAES; P. PUREUR; L. V. B. DIOP; O. ISNARD. Electrical magnetotransport properties in RCo 12B 6 compounds (R=Y, Gd, and Ho). PHYSICAL REVIEW B, v. 101, p. 224414, 2020.
20. P. S. Riseborough; S. G. MAGALHAES; E. J. CALEGARI; G. CAO. Enhancement of the spin-orbit coupling by strong electronic correlations in transition metal and light actinide compounds. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 32, p. 445601, 2020.
Selected Publications:
1. E. J. CALEGARI; S. G. MAGALHAES; P. S. Riseborough. Unusual magnetic field-dependence of a possible hidden order phase. npj Quantum Materials, v. 2, p. 48, 2017.
2. M. SCHMIDT; F. M. ZIMMER; S. G. MAGALHAES. Spin liquid and infinitesimal-disorder-driven cluster spin glass in the kagome lattice. Journal of Physics. Condensed Matter, v. 29, p. 165801, 2017.
3. F. M. ZIMMER; C. F. SILVA; S. G. MAGALHAES; C. LACROIX. Interplay between spin-glass clusters and geometrical frustration. Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, v. 89, p. 022120, 2014.
4. P. S. Riseborough; B. COQBLIN; S. G. MAGALHAES. Phase transition arising from the underscreened Anderson lattice model: A candidate concept for explaining hidden order in URu$_2$Si$_2$. Physical Review. B, Condensed Matter and Materials Physics, v. 85, p. 165116-1-165116-8, 2012.
5. S . G. MAGALHAES; F. M. ZIMMER; B. COQBLIN. Van Hemmen-Kondo model for disordered strongly correlated electron systems. Physical Review. B, Condensed Matter and Materials Physics, v. 81, p. 094424, 2010.
6. S. G. MAGALHAES; F. M. ZIMMER; P. R. KREBS; B. COQBLIN. Spin Glass and Ferromagnetism in disordered Cerium compounds. Physical Review B - Condensed Matter and Materials Physics, v. 74, p. 014427, 2006
7. A. THEUMANN; B. COQBLIN; S. G. MAGALHAES; A. A. SCHMIDT. Spin glass freezing in Kondo lattice compounds. Physical Review B - Condensed Matter and Materials Physics, v. 63, n.5, p. 54409, 2001.