arXiv 0807.13452008-07-08cond-mat.mes-hall

Hartree-Fock ground state of the two-dimensional electron gas with Rashba spin-orbit interaction

L. O. Juri, P. I. Tamborenea

备注：: 5 pages, 2 figures
发表信息：: Phys. Rev. B 77, 233310 (2008)
DOI：: 10.1103/PhysRevB.77.233310

英文摘要：

We search for the uniform Hartree-Fock ground state of the two-dimensional electron gas formed in semiconductor heterostructures including the Rashba spin-orbit interaction. We identify two competing quantum phases: a ferromagnetic one with partial spin polarization in the perpendicular direction and a paramagnetic one with in-plane spin. We present a phase diagram in terms of the relative strengths of the Rashba to the Coulomb interaction and the electron density. We compare our theoretical description with existing experimental results obtained in GaAs-AlGaAs heterostructures.

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