Metal-insulator transition and giant anisotropic magnetoresistance in ultra thin (Ga,Mn)As

R. R. Gareev, A. Petukhov, M. Schlapps +4

MBE-grown, 5 nm-thick annealed Ga0.95Mn0.05As films with Tc~90K demonstrate transition from metallic to insulating state below To~10K, where sheet resistances Rsh~h/e2 and both lon…