Superzone gap formation induced by ferroic orders

石飛 尊之

Ishitobi, Takayuki

We show that superzone gap formation-phenomena usually attributed to antiferroic ordering-can also arise from ferroic orders in materials featuring sublattice structures. Through an analysis of a -orbital tight-binding model on a zigzag chain, we reveal that ferroquadrupolar or ferromagnetic ordering, as well as external magnetic fields, can generate a Su-Schrieffer-Heeger-type gap.