Phase diagram of two dimensional electron gas in a perpendicular magnetic field around Landau level filling factors ν=1 and ν=3

Norman H. March; Alejandro Cabo; Francisco Claro

doi:10.1016/j.physleta.2005.09.011

paper

Phase diagram of two dimensional electron gas in a perpendicular magnetic field around Landau level filling factors ν=1 and ν=3

arXiv:cond-mat/0508739 · doi:10.1016/j.physleta.2005.09.011

Abstract

The measured melting curve $T_{m} (ν)$ between the crystal and liquid phases is analyzed using thermodynamics to extract the change of magnetization $Δ M$ as a function of the Landau level filling factor \ $ν,$ near $ν = 1$ . \ An explanation of $Δ M$ ( $ν)$ is proposed \ in terms of Skyrmions. \ Near $ν = 3$ , a Wigner crystal is the most probable solid phase, experiments excluding Skyrmions.

5 pages, 4 figures