António Costa works in the Theory of Quantum Nanostructures group. He tries to understand how nanostructures containing magnetic atoms react to the application of external perturbations, such as electromagnetic fields. He employs a variety of theoretical models and computational tools to describe the behaviour of the electrons within the nanostructures, and how they interact with the photons of the electromagnetic field.

António obtained his PhD from Universidade Federal Fluminense (Niterói, RJ, Brazil) in 1998. He spent one year as a postdoctoral researcher at the Centre for Quantum Computation of the University of Oxford (2001-2002). He has been a regular visiting researcher at the Department of Physics and Astronomy of the University of California Irvine from 2004 to 2012, including a one-year sabbatical in 2010. He held a tenured Associate Professor position at Universidade Federal Fluminense from 2006 to 2019.

• AT Costa, M Costa, J Fernández-Rossier
  Ising and XY paramagnons in two-dimensional 2H-NbSe2
  Physical Review B 105 (22), 224412 (2022)

• AT Costa, PAD Gonçalves, DN Basov, Frank HL Koppens, N Asger Mortensen, NMR Peres,
  Harnessing ultraconfined graphene plasmons to probe the electrodynamics of superconductors
  PNAS 118 (4) e2012847118 (2021)

• M Costa, NMR Peres, J Fernández-Rossier, AT Costa
  Nonreciprocal magnons in a two-dimensional crystal with out-of-plane magnetization
  Physical Review B 102 (1), 014450 (2020)

• A T Costa, D L R Santos, N M R Peres, and J Fernández-Rossier
  Topological magnons in CrI3 monolayers: an itinerant fermion description
  2020 2D Mater. 7 045031

• AT Costa, RB Muniz, S Lounis, AB Klautau, DL Mills
  Spin-orbit coupling and spin waves in ultrathin ferromagnets: The spin-wave Rashba effect
  Physical Review B 82 (1), 014428 (2010)