Flavio Ronetti

Nov 26, 2024 | link.aps.org | Even Thingstad |Pierre Fromholz |Aix Marseille Université |Flavio Ronetti

Topological magnetic insulators host chiral gapless edge modes. In the presence of strong interaction effects, the spin of these modes may fractionalize. Studying a two-dimensional array of coupled insulating spin- chains, we show how spatially modulated magnetic fields and Dzyaloshinskii-Moriya interactions can be exploited to realize chiral spin liquids or integer and fractional spin quantum Hall effect phases.