Rafael Fernandes

Rafael Fernandes
Photo credit
MRSEC

Rafael Fernandes

Associate Professor, School of Physics and Astronomy

Contact

John T. Tate Hall
Room 130-23
116 Church Street Se
Minneapolis, MN 55455

Affiliations

Center for Quantum Materials (CQM)
Materials Research Science and Engineering Centers (MRSEC)
Education

Ph.D., University of Campinas (Brazil), 2008

M.Sc., University of Campinas (Brazil), 2005

B.S., University of Campinas (Brazil), 2003

Professional Background

Before joining the University of Minnesota, I was a postdoc in Ames Laboratory and a joint postdoc in Columbia University/Los Alamos National Lab. I did my Ph.D. at the State University of Campinas, in Brazil.

Scientific & Professional Societies
Fellow, American Physical Society
Research Interests

My main research activities are in theoretical condensed matter physics, particularly in strongly correlated electronic many-body systems. I am interested in clean and disordered systems in which the collective behavior of the electrons gives rise to ordered states that break different symmetries of the system, such as superconductivity, magnetism, nematic ordering, and orbital ordering. My aim is to understand not only the impact of these individual phases on the electronic structure and macroscopic properties of the system, but also how they interact with each other. To achieve this goal, I rely not only on the theoretical methods from quantum statistical mechanics and many-body theory, but also on the invaluable empirical information obtained from a variety of experimental techniques, such as x-ray diffraction, neutron scattering, optical spectroscopy, thermodynamic measurements, and angle-resolved photo-emission spectroscopy. Here are some of the topics I have been working on:

  • Unconventional superconductivity (iron pnictides, cuprates, heavy fermions)
  • Twisted bilayer graphene
  • Vestigial electronic order (nematics, smectics)
  • Quantum Monte Carlo simulations of correlated systems
  • Transport in strongly correlated systems
  • Quantum criticality in disordered systems
  • Finite temperature Mott transition
Honors and Awards
  • Outstanding Referee, American Physical Society, 2020
  • Mercator Fellow, DFG Germany, 2020
  • McKnight Presidential Fellow, 2017 - 2020
  • George Taylor Award, 2017
  • Fellow of the American Physical Society, 2017
  • Cottrell Scholar Award, 2016 - 2019
  • Research Corporation for Science Advancement, 2016 - 2019
  • McKnight Land-Grant Professorship, 2015 - 2017
  • DOE Early Career, 2014 - 2019
Selected Publications

An updated list of my publications can be found at arXiv, or in my researcher ID webpage, Researcher ID

  1. M. N. Gastiasoro, J. Ruhman, and R. M.Fernandes, Superconductivity in dilute SrTiO3: A review, Ann. Phys. 417, 168107 (2020)
  2. R. M. Fernandes, P. P. Orth, and J. Schmalian, Intertwined Vestigial Order in Quantum Materials: Nematicity and Beyond, Annual Review of Condensed Matter Physics 10, 133 (2019).
  3. J. W. F. Venderbos and R. M. Fernandes, Correlations and electronic order in a two-orbital honeycomb lattice model for twisted bilayer graphene, Phys. Rev. B 98, 245103 (2018)
  4. T. V. Trevisan, M. Schütt, and R. M. Fernandes, Unconventional Multiband Superconductivity in Bulk SrTiO3 and LaAlO3/SrTiO3 Interfaces, Phys. Rev. Lett. 121, 127002 (2018)
  5. M. H. Christensen, P. P. Orth, B. M. Andersen, and R. M. Fernandes, Emergent Magnetic Degeneracy in Iron Pnictides due to the Interplay between Spin-Orbit Coupling and Quantum Fluctuations, Phys. Rev. Lett. 121, 057001 (2018)
  6. X. Wang, Y. Wang, Y. Schattner, E. Berg, and R. M. Fernandes, Fragility of Charge Order Near an Antiferromagnetic Quantum Critical Point, Phys. Rev. Lett. 120, 247002 (2018)
  7. X. Wang, Y. Schattner, E. Berg, and R. M. Fernandes, Superconductivity mediated by quantum critical antiferromagnetic fluctuations: the rise and fall of hot spots, Phys. Rev. B 95, 174520 (2017)
  8. J. Kang and R. M. Fernandes, Superconductivity in FeSe thin films driven by the interplay between nematic fluctuations and spin-orbit coupling, Phys. Rev. Lett. 117, 217003 (2016).
  9. R. M. Fernandes, S. A. Kivelson, and E. Berg, Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors, Phys. Rev. B 93, 014511 (2016)
  10. J. M. Allred, K. M. Taddei, D. E. Bugaris, M. J. Krogstad, S. H. Lapidus, D. Y. Chung, H. Claus, M. G. Kanatzidis, D. E. Brown, J. Kang, R. M. Fernandes, I. Eremin, S. Rosenkranz, O. Chmaissem, and R. Osborn, Double-Q spin-density wave in iron arsenide superconductors, Nature Phys. 12, 493 (2016)
  11. J. K. Glasbrenner, I. I. Mazin, Harald O. Jeschke, P. J. Hirschfeld, R. M. Fernandes, and R. Valenti, Effect of magnetic frustration on nematicity and superconductivity in iron chalcogenides, Nature Phys. 11, 953 (2015)
  12. M. Schütt and R. M. Fernandes, Antagonistic In-Plane Resistivity Anisotropies from Competing Fluctuations in Underdoped Cuprates, Phys. Rev. Lett. 115, 027005 (2015)