Experimental Evidence for Electron Channelling in Fe/Au (100)   Multilayers
  We present transport and structural data from epitaxial (100) and (111) Au/Fe multilayers grown by molecular beam epitaxy. From their analysis, we conclude that an electron channelling mechanism, due to strong specular reflection of the minority spin carrier at the Au/Fe interfaces, is responsible for the high conductivity in the (100) multilayers. 
D. T. Dekadjevi, P. A. Ryan, B. J. Hickey, B. D. Fulthorpe and B. K.   Tanner