Dependence of the 0.7 anomaly on the curvature of the potential barrier in quantum wires

L. W. Smith, H. Al-Taie, A. A. J. Lesage +9

Ninety eight one-dimensional channels defined using split gates fabricated on a GaAs/AlGaAs heterostructure are measured during one cooldown at 1.4 K. The devices are arranged in a…