| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
We studied the Mott transition in electron-hole system and related matters, which are summarized into three parts:
(1) Using the self-cosistent T matrix approximation, we obtained the ionization ratio of the excitons in two dimension and clarified the whole picture of the crossover between the exciton gas and the electron hole plasma. (2) We dealt the trions in carbon nanotubes by taking account of both the non-parabolicity of the energy band and the inter-band screening effect, and clarified the detailed low energy structure of the ionized exitons, succeeding in making realistic comparison with the experiments. (3) We showed using the variational cluster method that in the frutrated Kagome lattice the Mott transition is driven by the formation of the valence bond crystal.
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