Density-Dependent Spin Polarization in Ultra-Low-Disorder Quantum Wires
Density-Dependent Spin Polarization in Ultra-Low-Disorder Quantum Wires
There is controversy as to whether a one-dimensional (1D) electron gas can spin polarize in the absence of a magnetic field. Together with a simple model, we present conductance measurements on ultra-low-disorder quantum wires supportive of a spin polarization at B=0. A spin energy gap is indicated by the presence …