Complexity in Conventional Metal Films Steve Kevan Dept. of Physics U. of Oregon Complexity is often associated with systems having many interacting low energy degrees of freedom. Soft condensed matter and biological systems are prime examples where such interactions often lead to notably complex behaviors. One of the goals of nanoscience is to understand how complexity can be engineered into conventional materials by dimensional confinement. In this case, the low energy degrees of freedom are associated with weak interactions operating on the nanometer length scale. I will first discuss some of the indicators of complexity on the mesoscopic length scale and then present examples in the context of magnetic thin films composed of simple metals.