Evaluation of β-FeSi2/Si-interface using Ag-coating on Si surface

Kensuke Akiyama, Shunichi Motomura, Gohei Hayashi, Hiroshi Funakubo, Masaru Itakura

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5 Citations (Scopus)


β-FeSi2 films preferred to (100)-, (010)/(001)- and (101)/(110)-orientation on Ag-coated Si(100), Ag-coated Si(110) and Ag-coated Si(111) substrates, respectively. The full width at half maximum of the rocking curve of the β-FeSi2 800, 040 /004 and 202 /220 for the (100)-, (010)/(001)- and (101)/(110)-oriented β-FeSi2 films were 0.59°, 0.20° and 0.18°, indicating the good perfect quality of the crystal orientation. The photoluminescence intensity of the (101)/(110)-orientated β-FeSi2 films on Ag-coated Si(111) substrates was larger than the others, when the samples were indirectly excited by Ar-ion laser irradiation to the Si substrate side. The hetero-interface constituted with the β-FeSi2 (101)/(110) plane and Si(111) plane seems to have the lowest density of non-radiative center. From the transmission electron microscope analysis, the hetero-interface constituted with the β-FeSi2 (101)/(110) plane and Si(111) plane is considered as thermodynamically stable.

Original languageEnglish
Pages (from-to)1684-1687
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number12
Publication statusPublished - Dec 2013

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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