2002/12/19 by M. A. Boselli, I. C. da Cunha Lima, A. Ghazali · 27 citations
Chemistry · Materials Science · Physics and Astronomy · #Chemistry #Condensed matter physics #Electron #Exchange interaction #Ferromagnetism #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetic moment #Magnetic properties of thin films #Magnetization #Materials science #Monte Carlo method #Physics #Polarization (electrochemistry) #Quantum mechanics #Spin polarization #ZnO doping and properties #cond-mat
paper · pdf · doi:10.1103/physrevb.68.085319
published in Physical review. B, Condensed matter 68(8) (American Physical Society) · 17 pages and 14 figures
arxiv created 2002/12/19 · openalex publication_date 2003/08/21 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The magnetic order resulting from an indirect exchange between magnetic moments provided by the spin-polarized hole gas in the metallic phase of a Ga_1\ensuremath-xMnxAs double layer structure is studied via Monte Carlo simulation. The exchange is calculated to the second order of perturbation of the interaction between the magnetic moments and carriers (holes). We take into account a possible polarization of the hole gas due to the existence of an average magnetization in the magnetic layers, establishing, in this way, a self-consistency between the magnetic order and the electronic structure. That interaction leads to an internal ferromagnetic order inside each layer, and a parallel arrangement between their magnetizations, even in the case of thin layers. This fact is analyzed in terms of the interlayer and intralayer interactions.