2011/06/27 by Goran Isić, Dragan Indjin, Vitomir Milanović +3 · 1 citation
Materials Science · Physics and Astronomy · #Electron #Observable #Organic and Molecular Conductors Research #Quantum and electron transport phenomena #Quantum tunnelling #Scanning tunneling spectroscopy #Spectroscopy #Spin (aerodynamics) #Spin polarization #Spin–orbit interaction #Topological Materials and Phenomena #Zeeman effect #cond-mat.mes-hall
paper · pdf · doi:10.1063/1.3633252
published in Journal of Applied Physics 110(6) (American Institute of Physics) · 31 pages, 11 figures
arxiv created 2011/06/27 · openalex publication_date 2011/09/15 · arxiv updated 2015/05/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Magnetotunneling spectroscopy of resonant tunneling structures provides information on the nature of the two-dimensional electron gas in the well. We describe a model based on nonequilibrium Green’s functions that allows for a comprehensive study of the density of states, tunneling currents and current spin polarization. The investigated effects include the electron − phonon interaction, interface roughness scattering, Zeeman effect and the Rashba spin − orbit interaction. A qualitative agreement with experimental data is found regarding the satellite peaks. The spin polarization is predicted to be >10% for magnetic fields above 2 T and having a structure even at the satellite peaks. The Rashba effect is confirmed to be observable as a beating pattern in the density of states but found to be too small to affect the tunneling current.