Metallic Polycrystalline Thin Films of the Single-Component Neutral Molecular Solid Ni(tmdt)_2

摘要

Intrinsically metallic molecular materials become in most cases activated semiconductors when prepared as thin films due to the formation of segregated domains (grains)separated by boundaries.The transport properties are thus determined by the morphology of the films.To date,only two examples of thin molecular organic films exhibiting metallic behavior down to liquid helium temperatures have been described,despite their polycrystalline character.