Nano-scale metal multilayers produced by repeated press-rolling

Multilayer structured alloys which have a layer thickness less than 10 nm h ave been produced by the application of repeated pressing and rolling to th e initially macroscopically thick layered sample. The TEM observation of a Ag/Fe sample revealed a regular alternate lamination of Ag and Fe with the layer thickness in the range of 10 nm. The measured electrical resistivity showed a large dependence on the applied magnetic field which is characteri stic to the composite structure of magnetic and non-magnetic metals in the thickness range of nanometers.