Electron spin filtering in the GaAs/AlGaAs interface space charge field Dzhioev, R. I. ; Zakharchenya, B. P. ; Lazarev, M. V. ; Tkachuk, M. N. Abstract Publication: Physics of the Solid State Pub Date: August 2005 DOI: 10.1134/1.2014522 Bibcode: 2005PhSS...47.1584D