3 papers
cond-mat.mtrl-sci2026
Symmetry Classification of Multipolar Orders in Crystals: Theory, Property Tensors and Automated Analysis with MagSymMultipoles
Maxime Braun, Quintin N. Meier
Many structural and magnetic phases and properties of crystalline materials can be related to the ordering of electric and magnetic multipoles. Examples include ferroelectricity, l…
cond-mat.str-el2024
First-principles study of KCoF: Jahn-Teller effect, dynamical magnetic charges, magnetoelectric multipoles and antimagnetoelectricity
Bogdan Guster, Maxime Braun, Eric Bousquet
We study from \textit{ab~initio} density functional theory calculations the structural and magnetic properties of the crystal KCoF. We found that the experimentally reported cu…
cond-mat.mtrl-sci2024
Large dynamical magnetic effective charges and anti-magnetoelectricity from spin and orbital origin in multiferroic BiCoO
Maxime Braun, Bogdan Guster, Andrea Urru +2
Using first-principles calculations, we explore the magnetoelectric properties of the room-temperature multiferroic crystal BiCoO. We use both applied magnetic field and finite…