PERPENDICULAR ELECTRICAL-CONDUCTION IN CU MN MULTILAYER FILMS/

The electrical resistivity and the temperature coefficient of resistan ce (TCR) of Cu/Mn multilayer films have been studied in the temperatur e range 295-483 K. Two sets of films are investigated, one with consta nt number of double layers and increasing bilayer wavelength Lambda in the range 4-12 nm, and the other with constant Lambda and varying num ber of double layers n in the range 5-30. The bilayer wavelength depen dence of room temperature resistivity rho(RT) and TCR exhibits oscilla tory behaviour. The TCR is found to be proportional to the inverse of the bilayer wavelength. The experimental results are analysed in the l ight of Mayadas-Shatzkes model.