2009/05/04 by Yun-Pil Shim, Y. -P. Shim, A. H. MacDonald · 1 citation
Chemistry · Physics and Astronomy · #Bilayer #Chemistry #Condensed matter physics #Electron #Exciton #Ferromagnetism #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quasiparticle #Semiconductor Quantum Structures and Devices #Spin (aerodynamics) #Spin polarization #Superconductivity #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.79.235329
published as Phys. Rev. B 79, 235329 (2009) · 36 pages, 12 figures
arxiv created 2009/05/04 · openalex publication_date 2009/06/25 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Bilayer electron-hole systems with unequal electron and hole densities are expected to have exciton-condensate ground states with spontaneous spin polarization in both conduction and valence bands. In the absence of spin-orbit and electron-hole exchange interactions there is no coupling between the spin orientations in the two quantum wells. In this paper we show that Rashba spin-orbit interactions lead to unconventional magnetic anisotropies, whose strength we estimate, and to ordered states with unusual quasiparticle spectra.