3 papers
cond-mat.str-el2026
Collinear -wave magnetism and hidden orbital ferrimagnetism
Valentin Leeb, Johannes Knolle
In the absence of spin-orbit coupling, collinear magnets are classified as even-wave magnets, i.e., either ferro-, antiferro-, or altermagnets. It is based on the belief that colli…
cond-mat.str-el2025
Altermagnetism Without Crystal Symmetry
Peru d'Ornellas, Valentin Leeb, Adolfo G. Grushin +1
Altermagnetism is a collinear magnetic order in which opposite spin species are exchanged under a real-space rotation. Hence, the search for physical realizations has focussed on c…
cond-mat.str-el2023
Kitaev-Heisenberg model on the star lattice: From chiral Majorana fermions to chiral triplons
Peru d'Ornellas, Johannes Knolle
The interplay of frustrated interactions and lattice geometry can lead to a variety of exotic quantum phases. Here we unearth a particularly rich phase diagram of the Kitaev-Heisen…