Phys. Rev. B 77, 233310 (2008) [4 pages]Hartree-Fock ground state of the two-dimensional electron gas with Rashba spin-orbit interactionReceived 26 February 2007; revised 26 May 2008; published 27 June 2008 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. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.77.233310
DOI:
10.1103/PhysRevB.77.233310
PACS:
71.10.Ca, 71.70.Ej, 73.21.−b
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