3 papers
cond-mat.mes-hall2026
Geometric Spin Degeneracy in Spin-Orbit-Free Compensated Magnets
Seung Hun Lee, Yuting Qian, Xi Dai +1
Compensated magnets with vanishing net magnetization can exhibit both pronounced spin splitting and unconventional band degeneracies. In altermagnets, such degeneracies are enforce…
cond-mat.mes-hall2025
Embedding independent length scale of flat bands
Seokju Lee, Seung Hun Lee, Bohm-Jung Yang
In flat-band systems with quenched kinetic energy, most of the conventional length scales related to the band dispersion become ineffectual. Although a few geometric length scales,…
cond-mat.mes-hall2024
Euler band topology in spin-orbit coupled magnetic systems
Seung Hun Lee, Yuting Qian, Bohm-Jung Yang
The Euler class characterizes the topology of two real bands isolated from other bands in two-dimensions. Despite various intriguing topological properties predicted up to now, the…