Control of single charge/and spin states using terahertz wave
| Project/Area Number |
26706002
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Nanostructural physics
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| Research Institution | Tohoku Institute of Technology |
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Principal Investigator |
Shibata Kenji 東北工業大学, 工学部, 准教授 (00436578)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥22,360,000 (Direct Cost: ¥17,200,000、Indirect Cost: ¥5,160,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2014: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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| Keywords | テラヘルツ / 量子ドット / トランジスタ / テラヘルツ電磁波 / トンネル効果 / テラヘルツ/赤外材料・素子 / マイクロ・ナノデバイス / テラヘルツ波 |
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| Outline of Final Research Achievements |
Electrical manipulation and read-out of quantum states in zero-dimensional quantum dots by nanogap metal electrodes is expected to bring about innovation in quantum information processing. In this study, we established a method for performing terahertz spectroscopy on single 10nm scale quantum dots by using nanogap metal electrodes. Inter-sublevel transition spectra of single quantum dots are successfully measures for the first time and the electron-electron interaction are discussed for a single quantum dot. We also succeeded in demonstrating the THz spectroscopy for single molecular transistors. These works are opening a way for novel quantum information applications on self-assembled QD systems.
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Report
(4 results)
Research Products
(39 results)
