2 papers
cond-mat.mes-hall2025
Effective Field Theory of a Noncollinear Altermagnet
Seungho Lee, Se Kwon Kim
We derive an effective field theory for a noncollinear altermagnet and magnons on top of the noncollinear ground state from an altermagnetic Heisenberg model. We obtain the ground-…
cond-mat.mes-hall2025
Current-driven dynamics of antiferromagnetic domain-wall skyrmions
Wooyon Kim, Jun Seok Seo, Se Kwon Kim
Domain-wall skyrmions are magnetic solitons embedded in a domain wall that are topologically equivalent to skyrmions. Here, we theoretically study antiferromagnetic domain-wall sky…