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Article: Research on condensed matter described by D.L. Goroshko and colleagues.
- Article from:
- Physics Week
- Article date:
- November 10, 2009
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"Electrical and optical properties of thin iron layers grown at room temperature on the epitaxial silicide Si(111)-(2 x 2)-Fe phase and on an Si(111)7 x 7 surface were investigated using in situ Hall effect registration, atomic force microscopy, and optical spectroscopy. It was established that Si(111)-(2 x 2)-Fe phase has semiconducting properties with a 0.99 eV effective band gap and acts as a diffusion barrier for the deposited iron atoms, preventing intermixing with the substrate at room temperature," scientists in Russia report.
"Peculiarities in the optical spectra of a sample with a 2 nm iron film grown on the Si(111)-(2 x 2)-Fe phase typical for both metal ...