Physics and application of single self-assembled InAs quantum dot transistors

单自组装InAs量子点晶体管的物理与应用

• 批准号: 19560338
• 负责人: SHIBATA Kenji
• 金额: $ 2.91万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19560338/
• 关键词: 電子デバイス・集積回路; 量子ドット; 単一電子トランジスタ; 超伝導; 強磁性; テラヘルツ電磁波; 自己組織化; インジウム砒素; フォノン; 近藤効果

We have fabricated lateral electron tunneling structures by forming nanogap electrodes directly contacting single self-assembled InAs quantum dots (QDs) grown on GaAs surfaces. The fabricated junctions showed single electron tunneling behaviors and exhibited clear shell fillings. When quantum mechanical coupling between electrons in the QDs and the electrodes was strong, the Kondo effect was observed up to the very high temperature of T_K～80K.Owing to the good compatibility of InAs QDs with metals, further functionalities can be added to the structure by using superconducting or ferromagnetic nanogap electrodes.

我们通过在GAAS表面上生长的单个自组装的INAS点来形成纳米式电极，从而形成了纳米式隧道结构。临界效果直至t_k〜80k的高温。由于INA与金属的良好兼容性，可以通过使用超导或铁磁纳米纳语P电极将进一步的功能添加到结构中。

项目成果

Physics and applications of single quantum dots coupled to metallic nanogap electrodes

单量子点与金属纳米间隙电极耦合的物理和应用

• 发表时间: 2008
• 作者: K. Shibata;M. Jung;C. Buizert;K. Hamaya;A. Oiwa;T. Machida;S. Tarucha;K. Hirakawa
• 通讯作者: K. Hirakawa

Physics and apphcation of single quantum dots coupled to metallic nanogap electrodes

单量子点耦合金属纳米间隙电极的物理及应用

• 发表时间: 2008
• 作者: K. Shibata;M. Jung;C. Buizert;K. Hamaya;A. Oiwa;K. Hirakawa;T. Machida. and S. Tarucha
• 通讯作者: T. Machida. and S. Tarucha

Lateral electron tunneling through single self-assembled InAs quantum dots coupled to superconducting nanogap electrodes

• DOI: 10.1063/1.2779970
• 发表时间: 2007-09
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: K. Shibata;C. Buizert;A. Oiwa;K. Hirakawa;S. Tarucha

Fabrication of Single-Electron Transistor Composed of a Self-Assembled Quantum Dot and Nanogap Electrode by Atomic Force Microscope Local Oxidation

原子力显微镜局部氧化制备自组装量子点和纳米间隙电极组成的单电子晶体管

• 发表时间: 2010
• 期刊: Appl.Phys.Exp. 3
• 作者: R.Moriya;H.Kobayashi;K.Shibata;S.Masubuchi;K.Hirakawa;S.Ishida;Y.Arakawa;T.Machida
• 通讯作者: T.Machida

Kondo universality for a quantum dot coupled to superconducting leads

量子点与超导引线耦合的近藤通用性

• 发表时间: 2007
• 期刊: Phys. Rev. Lett. 99
• 作者: C. Buizert;A. Oiwa;K. Shibata;K. Hirakawa;S. Tarucha
• 通讯作者: S. Tarucha