| Project/Area Number |
20244044
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | University of Tsukuba |
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Principal Investigator |
MASUMOTO Yasuaki University of Tsukuba, 大学院・数理物質科学研究科, 教授 (60111580)
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| Co-Investigator(Kenkyū-buntansha) |
IKEZAWA Michio 筑波大学, 大学院・数理物質科学研究科, 准教授 (30312797)
TOMIMOTO Shinichi 筑波大学, 大学院・数理物質科学研究科, 助教 (90396599)
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| Co-Investigator(Renkei-kenkyūsha) |
SAKUMA Yoshiki 独立行政法人物質・材料研究機構, 先端フォトニクス材料ユニット量子ナノ構造グループ, グループリーダー (60354346)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥48,230,000 (Direct Cost: ¥37,100,000、Indirect Cost: ¥11,130,000)
Fiscal Year 2010: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2009: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
Fiscal Year 2008: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
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| Keywords | 等電子トラップ / 単一光子源 / 燐化ガリウム(GaP) / 砒化ガリウム(GaAs) / 量子ドット / 電子スピン初期化 / スピン才差運動 / 時間分解カー回転法 / リン化ガリウム(GaP) / NNペア / InP / 励起子 / 荷電励起子 / スピン偏極 / 円偏光度 / 励起子微細構造 / チャージチューナブル |
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| Research Abstract |
Quantum optics and spins were studied in artificial atoms, such as quantum dots and isoelectric traps. The largest binding energy of biexcitons in quantum dots in the near infrared region, spin precession of excitons and electrons in charge tunable InP quantum dots, initialization process of electron spins in InP quantum dots, sign of electron g-factor in CdTe quantum dots, electron-Mn spin interaction in CdMnTe quantum dots, atomic configuration of isoelectronic trap pairs in GaP:N and quantum nature of photons in GaAs:N were revealed.
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