Spin ordering: two different scenarios for the single and double layer structures in the fractional and integer quantum Hall effect regimes

V. T. Dolgopolov, E. V. Deviatov, V. S. Khrapai +5

We investigate the ground state competition at the transition from the spin unpolarized to spin ordered phase at filling factor $\nu =2/3$ in single layer heterostructure and at $\nu =2$…