Absorption Due to Quasi-Two-Dimensional Electronic Transition in Very Thin Films of PbI_2
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概要
- 論文の詳細を見る
Absorption spectra in a very thin film of Pbl. have been measured by usingmultiple total reflections at 90 K. A new band appearing at 21.14 kcm-' is as-sumed to be associated with an exciton located in a few layers adjacent to vacuum,and the exciton binding energy of 650150 cm- ' is larger than that of the bulkexciton. This larger binding energy suggests quasi-two dimensionality of thisexciton.Moreover, a step and a plateau appear at 20.8 kcm ' and in 22-23 kcm-',respectively. These structures are concluded to be due to the band-to-bandtransition in the quasi-two dimensional electronic structure.
- 社団法人日本物理学会の論文
- 1984-12-15
著者
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Sasaki Yoshihiro
Department Of Cardiology Miki
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Goto Takenari
Department Of Physics Faculty Of Science Tohoku University
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Sasaki Yoshihiro
Department of Physics,Faculty of Science,Tohoku University
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