Melting of Wigner crystal in high-mobility $n$-GaAs/AlGaAs heterostructures at filling factors $0.18>\nu >0.125$: Acoustic studies

I. L. Drichko, I. Yu. Smirnov, A. V. Suslov +3

Using acoustic methods the complex high-frequency conductance of high-mobility $n$-GaAs/AlGaAs heterostructures was determined in magnetic fields 12$÷$18~T. Based on the observed f…