Spin transport in spin filtering magnetic tunneling junctions.
Taking into account spin-orbit coupling and s-d interaction, we investigate spin transport properties of the magnetic tunneling junctions with spin filtering barrier using Landauer-Büttiker formalism implemented with the recursive algorithm to calculate the real-space Green function. We predict completely different bias dependence of negative tunnel magnetoresistance (TMR) between the systems composed of nonmagnetic electrode (NM)/ferromagnetic barrier (FB)/ferromagnet (FM) and NM/FB/FM/NM spin filtering tunnel junctions (SFTJs). Analyses of the results provide us possible ways of designing the systems which modulate the TMR in the negative magnetoresistance regime.
Department of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
Yun
Y
Li
Eok Kyun
EK
Lee
D003198:Computer Simulation; D004579:Electron Transport; D008280:Magnetics; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D012666:Semiconductors; D013113:Spin Labels
D013113:Spin Labels