2007/06/30 by Maciej Misiorny, J. Barnaś, Józef Barnas · 92 citations
Engineering · Materials Science · Physics and Astronomy · #Atomic physics #Charge (physics) #Condensed matter physics #Coulomb #Electron #Fermi level #HOMO/LUMO #Magnet #Magnetic field #Magnetism in coordination complexes #Magnetization #Molecular Junctions and Nanostructures #Molecule #Physics #Quantum and electron transport phenomena #Quantum mechanics #Single-molecule magnet #Spin (aerodynamics) #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.76.054448
published in Physical Review B 76(5) (American Physical Society) · 5 pages with 4 EPS figures; version as accepted for publication in Phys. Rev. B (more general model introduced)
arxiv created 2007/08/08 · openalex publication_date 2007/08/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Magnetic switching of a single molecule magnet (SMM) due to spin polarized current is investigated theoretically. The charge transfer between the electrodes takes place via the lowest unoccupied molecular orbital (LUMO) of the SMM. Generally, the double occupancy of the LUMO level, and hence a finite on-site Coulomb repulsion, is allowed. Owing to the exchange interaction between electrons in the LUMO level and the SMM's spin, the latter can be reversed. The perturbation approach (Fermi golden rule) is applied to calculate current-voltage characteristics. The influence of Coulomb interactions on the switching process is also analyzed.