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cond-mat.mtrl-sci2026

Interplay of nonrelativistic and relativistic spin splittings in altermagnets

Daegeun Jo, Peter M. Oppeneer, Mohsen Yarmohammadi

Despite their compensated magnetic moments, altermagnets (AMs) exhibit nonrelativistic spin splitting (NRSS) that offers routes to spintronic functionality without relying on relat…

cond-mat.mtrl-sci2026

Giant perpendicular Edelstein polarization in 2D compensated magnets via bichromatic Floquet driving

Mohsen Yarmohammadi, Daegeun Jo, Marco Berritta +3

While unconventional -wave magnets can generate nonrelativistic Edelstein polarizations, spin-group symmetries strictly forbid these responses in unconventional magnets with hig…

cond-mat.mtrl-sci2026

Unconventional orbital currents and torques due to ferro-rotational orbital textures

Daegeun Jo, Peter M. Oppeneer

Orbital angular momentum transport has emerged as a promising route for manipulating magnetic devices, yet its generation has largely relied on the conventional orbital Hall effect…

cond-mat.mtrl-sci2025

Spin polarization engineering in -wave altermagnets

Mohsen Yarmohammadi, Marco Berritta, Marin Bukov +3

Altermagnets host unconventional spin-polarized bands despite zero net magnetization, but controlling their spin structure remains challenging. We propose a multi-field approach to…

cond-mat.mtrl-sci2025

Anomalous spin dynamics after dual optical excitation

Sergii Parchenko, Peter M. Oppeneer, Andreas Scherz

Ultrashort optical pulses are a cornerstone for manipulating electronic and magnetic states in materials on a femtosecond timescale. Conventional models assume that optical excitat…

cond-mat.mtrl-sci2025

Weak Ferromagnetism in Altermagnets from Alternating -Tensor Anisotropy

Daegeun Jo, Dongwook Go, Yuriy Mokrousov +3

Altermagnets are magnetic materials with antiferromagnetic spin ordering but exhibit ferromagnetic properties. Understanding the microscopic origin of the latter is a central probl…