Thursday, January 12, 20122:00 PM - 3:00 PMCNLS Conference Room (TA-3, Bldg 1690)|
Fractionalization in spontaneous integer quantum Hall systems
Armin RamanisianT-4 and CNLS
Using Kondo lattice model as an example, we show that systems that exhibit spontaneous integer quantum Hall effect can have fractionalized electronic excitations with anyonic exchange statistics. The fractionalized excitations are bound to the cores of topologically stable vortices in the magnetic order parameter. For highly symmetric states, the vortex charge is half-odd integer, although other, generally irrational, charges are possible for less symmetric states.
Host: Kipton Barros, T-4 and CNLS