Nanometallic Transition: We demonstrated nanometallic transitions and their utility in thin films of Si(O,N),Al(O,N)and(Hf,Zr)O2-based glassy films and ABO3-based epitaxial films.Electrons in a random material are random waves with amplitudes that do not decay until beyond a localization distance ζ.Whereas any finite ζ would lead to a conventional random insulator in the bulk form,as the size δ shrinks below ζ the material should behave like a metal.