3 papers
cond-mat.str-el2023
Non-collinear 2k antiferromagnetism in the Zintl semiconductor EuInSb
Vincent C. Morano, Jonathan Gaudet, Nicodemos Varnava +10
EuInSb is an orthorhombic non-symmorphic small band gap semiconductor with three distinct Eu sites and two low-temperature magnetic phase transitions. The materi…
cond-mat.mes-hall2020
Axion coupling in the hybrid Wannier representation
Nicodemos Varnava, Ivo Souza, David Vanderbilt
Many magnetic point-group symmetries induce a topological classification on crystalline insulators, dividing them into those that have a nonzero quantized Chern-Simons magnetoelect…
cond-mat.mtrl-sci2018
Surfaces of Axion Insulators
Nicodemos Varnava, David Vanderbilt
Axion insulators are magnetic topological insulators in which the non-trivial index is protected by inversion symmetry instead of time-reversal symmetry. The natural…