PINNING MODES OF THE STRIPE PHASES OF 2D ELECTRON SYSTEMS IN HIGHER LANDAU LEVELS
20 May 2009
Striking resonances, identified as pinning modes, have recently been observed in the rf spectra of the stripe phases of extremely low disorder two-dimensional electron systems with two or more filled Landau levels. We present spectra which detail the dependence of this resonance on the Landau filling factor nu, in broad ranges which include the stripe phases in the Landau levels with N = 2,3 and 4.