| Presentation | 2009-11-19 Theoretical Studies on the Characteristic Electronic Structures of In-Containint Nitride Semiconductors Based on the First Principles Calculations Kenji SHIRAISHI, Jun-ichi IWATA, Teruaki OBATA, Atsushi OSHIYAMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In-containing nitride semiconductors exhibit characteristic behavior which can be ascribed to the large difference in the covalent radius between In and N atoms. We consider atomic and electronic structures of N mono-vacancies (V_N) in InGaN in detail by the first principles calculations. We find that the second nearest neighbor In-In interactions, which are not important in conventional semiconductors such as Si and InAs, are as crucial the nearest neighbor In-N interaction in In-related nitride semiconductors. Moreover, we clearly show that the strong second nearest neighbor In-In interactions in InN are the physical origin of the unusually narrow band gap of InN |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | In-containing nitride semiconductors / Band structures / Theory / First-Principles Calculations / Iconicity / Covalency |
| Paper # | ED2009-138,CPM2009-112,LQE2009-117 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2009/11/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Theoretical Studies on the Characteristic Electronic Structures of In-Containint Nitride Semiconductors Based on the First Principles Calculations |
| Sub Title (in English) | |
| Keyword(1) | In-containing nitride semiconductors |
| Keyword(2) | Band structures |
| Keyword(3) | Theory |
| Keyword(4) | First-Principles Calculations |
| Keyword(5) | Iconicity |
| Keyword(6) | Covalency |
| 1st Author's Name | Kenji SHIRAISHI |
| 1st Author's Affiliation | Center for Computational Sciences, University of Tsukuba:Graduate School for Pure and Applied Sciences, University of Tsukuba:CREST, Japan Science and Technology Agency() |
| 2nd Author's Name | Jun-ichi IWATA |
| 2nd Author's Affiliation | Center for Computational Sciences, University of Tsukuba:CREST, Japan Science and Technology Agency |
| 3rd Author's Name | Teruaki OBATA |
| 3rd Author's Affiliation | Graduate School for Pure and Applied Sciences, University of Tsukuba |
| 4th Author's Name | Atsushi OSHIYAMA |
| 4th Author's Affiliation | Graduate School of Engineering, University of Tokyo:CREST, Japan Science and Technology Agency |
| Date | 2009-11-19 |
| Paper # | ED2009-138,CPM2009-112,LQE2009-117 |
| Volume (vol) | vol.109 |
| Number (no) | 290 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |