Infrared optical properties of chromium nanoscale films with a phase transition
作者： Robert Lovrinčić , Annemarie Pucci
DOI: 10.1103/PHYSREVB.80.205404
关键词: Phase (matter) 、 Infrared 、 Materials science 、 Phase transition 、 Conductivity 、 Condensed matter physics 、 Diamond 、 Infrared spectroscopy 、 Coherent backscattering 、 Nanoclusters
摘要: Thickness-dependent infrared spectra measured during growth of Cr on diamond C(100) under ultrahigh vacuum conditions reveal a structural phase transition from discontinuous to the crystalline bulk one with Drude-type optical properties. The thickness 2.5 nm observed well agrees literature data theoretically predicted maximum size for stable fcc nanoclusters formation which should be supported owing good lattice match. Below nm, spectral behavior surprisingly corresponds Drude-Smith type dielectric function, allows determine conductivity and get quantitative information effect coherent backscattering.
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