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G-type Antiferromagnetic BiFeO is a Multiferroic -wave Altermagnet
Andrea Urru, Daniel Seleznev, Yujia Teng +3
G-type antiferromagnetic BiFeO is shown to be an altermagnet. We present the band structure using an unconventional scheme designed to highlight the distinctive spin splitting…
Optical spatial dispersion via Wannier interpolation
Andrea Urru, Ivo Souza, Óscar Pozo Ocaña +2
We present a numerical implementation, based on Wannier interpolation, of a Kubo-Greenwood formalism for computing the spatially dispersive optical conductivity in crystals at firs…
Trilinear coupling and toroidicity in multiferroics
Andrea Urru, Alessio Filippetti, Jorge Íñiguez-Gonzàlez +1
Magnetoelectric responses are related in general to magnetic multipoles, and in particular the off-diagonal linear response is proportional to the toroidization order parameter. In…