Electron tunneling through metallic particles and quantum dots connected to ferromagnetic leads
J. Barnaś1,2 , J. Martinek2 , R. Świrkowicz3 , M. Wilczyński3 , W. Rudziński1
1 Department of Physics, Adam Mickiewicz University, ul. Umultowska 85, 61-614, Poznań , Poland
2 Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179, Poznań , Poland
3 Faculty of Physics, Warsaw Technical University, ul. Koszykowa 75, 00-662 Warszawa, Poland
Czechoslovak Journal of Physics, 51 (2001)
Electronic transport through small metallic particles and quantum dots, coupled by tunneling barriers to ferromagnetic electrodes, is studied theoretically. Nonequilibrium Green function techniques are used to calculate electric current and tunnel magnetorersistance due to rotation of the magnetic moments of external electrodes.