Destabilization of the 2D conducting phase by an in-plane magnetic field

Details Destabilization of the 2D conducting phase by an in-plane magnetic field Destabilization of the 2D conducting phase by an in-plane magnetic field

1998-12-22

arxiv.org/abs/cond-mat/9812348v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, RevTeX + epsf, 7 figures. Minor changes to text and figures. Additional references

Scientific paper

We propose a mechanism for the recently reported destabilization by an in-plane magnetic field of the conducting phase of low density electrons in 2D. We apply our self-consistent approach based on the memory function formalism to the fully spin polarized electron system. This takes into account both disorder and exchange-correlation effects. We show that spin polarization significantly favors localization because of the enhancement of the exchange-correlations. A key outcome is that the conducting phase for the fully spin polarized system is significantly suppressed. The in-plane magnetic field needed to stabilize the fully spin polarized state lies in the range 0.1

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