Optical properties of nanocrystalline FeSi 2 and the effects of hydrogenation

K. Takarabe, H. Doi, Y. Mori, K. Fukui, Y. Shim, N. Yamamoto, T. Yoshitake, K. Nagayama

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)


    Various optical measurements confirm that optical absorption in uniform thin films made from nanocrystalline iron disilicide (nc- Fe Si2) with a 3-5 nm radius is larger by about 10% than that of single crystalline Β-Fe Si2. It is also found that the hydrogenation of nc- Fe Si2 changes strongly its optical characteristic energies. The nanocrystalline state appears characteristically in the imaginary part of dielectric constants of Β-Fe Si2 around 2-3 eV.

    Original languageEnglish
    Article number061911
    JournalApplied Physics Letters
    Issue number6
    Publication statusPublished - Feb 2006

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)


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