Metamorphosis of the Quantum Hall Ferromagnet at
arXiv:cond-mat/0307711 · doi:10.1103/PhysRevLett.91.116804
Abstract
We report on the dramatic evolution of the quantum Hall ferromagnet in the fractional quantum Hall regime at filling. A large enhancement in the characteristic timescale gives rise to a dynamical transition into a novel quantized Hall state. The observed Hall state is determined to be a zero-temperature phase distinct from the spin-polarized and spin-unpolarized fractional quantum Hall states. It is characterized by a strong temperature dependence and puzzling correlation between temperature and time.
4 pages, 3 figures. to appear in Phys. Rev. Lett