Author/Authors :
Jinki Hong، نويسنده , , V. Kubrak، نويسنده , , K.W. Edmonds، نويسنده , , A.C Neumann، نويسنده , , B.L Gallagher، نويسنده , , P.C Main، نويسنده , , M. Henini، نويسنده , , C.H Marrows، نويسنده , , B.J. Hickey، نويسنده , , S. Thoms، نويسنده ,
Abstract :
We present experimental and theoretical results for the propagation of 2D electrons through simple magnetic barriers. We show that it is not possible to use a ballistic picture to understand the barrier conductance even when the width of the barrier in the direction of current propagation is small compared to the electron mean free path.
Keywords :
Quasi-ballistic , Magnetic barrier , Magnetoresistance , Hybrid ferromagnet–semiconductor device