Transition from an electron solid to the sequence of fractional quantum Hall states at very low Landau level filling factor

At low Landau level filling vector, the transition from electron solid to the fractional quantum Hall (FQHE) states was observed. Each of the developing FQHE states appeared only above a filling-factor-specific tempeature and in a certain temperature range. It was because of the melting of an electron crystal and FQHE liquid formation. The FQHE states followed the series of composite fermion (CP) states from v = 1/6 and v = 1/8.