Schulze-Wischeler, F.; Mariani, E.; Hohls, Frank; Haug, Rolf J.
(College Park, MD : American Institute of Physics, 2005)
The activation gap Δ of the fractional quantum Hall states at constant fillings v = 2/3 and 2/5 has been measured as a function of the perpendicular magnetic field B. A linear dependence of Δ on B is observed while approaching ...