Fig. 3: Reentrant integer quantum Hall Wigner solids in a variable density sample and a sample of fixed density.
From: Particle-hole symmetry and the reentrant integer quantum Hall Wigner solid

a Waterfall plots of the magnetoresistance Rxx and Hall resistance Rxy as plotted against the inverse filling factor 1/ν of Sample 1 as prepared at different electron densities. Measurements were performed at the temperature of T = 12 mK. b Magnetoresistance Rxx and Hall resistance Rxy as plotted against the inverse filling factor 1/ν of Sample 2 of a fixed electron density. This density is significantly lower than that of Sample 1. Measurements were performed at the temperature of T = 5.1 mK. Labels on traces indicate electron densities n in units of 1011 cm−2. Vertical dashed lines mark locations and values of filling factors ν of interest and arrows mark the reentrant integer quantum Hall Wigner solid (RIQHWS). With the exception of traces at the highest density, traces for Sample 1 are shifted vertically upward for clarity.