Wigner rod state in a quasi-two-dimensional electron gas

Abstract The magnetic phase diagram of a quasi-two-dimensional electron gas is calculated as a function of Wigner sphere radius r s and film thickness D , using the local spin density approximation. The magnetic transition is found to occur from a nonmagnetic fluid to a spin-fully polarized ferromagnetic (FPF) Wigner film at r s D ∼ r s , an FPF Wigner rod ground state is realized.