Spin-Polarization transition in the two dimensional electron gas

Details Spin-Polarization transition in the two dimensional electron gas Spin-Polarization transition in the two dimensional electron gas

2000-06-26

arxiv.org/abs/cond-mat/0006397v1

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 4 figures

Scientific paper

10.1209/epl/i2001-00160-3

We present a numerical study of magnetic phases of the 2D electron gas near freezing. The calculations are performed by diffusion Monte Carlo in the fixed node approximation. At variance with the 3D case we find no evidence for the stability of a partially polarized phase. With plane wave nodes in the trial function, the polarization transition takes place at Rs=20, whereas the best available estimates locate Wigner crystallization around Rs=35. Using an improved nodal structure, featuring optimized backflow correlations, we confirm the existence of a stability range for the polarized phase, although somewhat shrunk, at densities achievable nowadays in 2 dimensional hole gases in semiconductor heterostructures . The spin susceptibility of the unpolarized phase at the magnetic transition is approximately 30 times the Pauli susceptibility.

Affiliated with

Also associated with

No associations

Rating

Spin-Polarization transition in the two dimensional electron gas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spin-Polarization transition in the two dimensional electron gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-Polarization transition in the two dimensional electron gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-34312