Higo, Y.Tanaka, M.2004-12-032004-12-0320012001http://hdl.handle.net/2003/50310.17877/DE290R-10284enThe American Physical SocietyPhysical Review Letters530Large Tunneling Magnetoresistance in GaMnAs/AlAs/GaMnAs Ferromagnetic Semiconductor Tunnel Junctions10.1103/PhysRevLett.87.026602article (journal)