Laser-Controlled Ultrafast Spintronics in Artificial Atoms

• Project/Area Number: 20750018
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Physical chemistry
• Research Institution: Nihon University
• Principal Investigator: SAKO Tokuei Nihon University, 理工学部, 講師 (60361565)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 人工原子 / 電子状態 / スピン / レーザー / フントの規則 / 量子ドット / 磁性 / スピントロニクス / 量子化学 / 配置間相互作用法 / 交換相互作用 / レーザー制御

Research Abstract

A quantum chemical code for calculating electronic states of artificial atoms involving magnetic impurities has been developed for the purpose of designing an ultrafast scheme of controlling atomic spins by laser lights. Numerical simulations of optical spectra for the studied systems have shown a possibility of controlling spin states of the magnetic impurities by properly choosing their number and spatial configuration. Analysis of the electronic structure of artificial atoms has clarified the origin of Hund's multiplicity rule that operates in artificial atoms as well as in usual atoms.

Research Products

• [Journal Article] Origin of Hund's multiplicity rule in quasi-twodimensional two-electron quantum dots (2010)
  • Author(s): T. Sako, J. Paldus, G.H.F. Diercksen
  • Journal Title: Physical Review A 81 Pages: 22501-22501
  • Peer Reviewed
• [Journal Article] Origin of Hund's multiplicity rule in quasi-two-dimensional two-eiectron quantum dots (2010)
  • Author(s): T.Sako, J.Paldus, G.H.F.Diercksen
  • Journal Title: Physical Review A 81
  • Peer Reviewed
• [Journal Article] The Energy Level Structure of Low-dimensional Multi-electron Quantum Dots (2009)
  • Author(s): T. Sako, J. Paldus, G.H.F. Diercksen
  • Journal Title: Advances in Quantum Chemistry 58 Pages: 177-201
  • Peer Reviewed
• [Journal Article] The energy level structure of low-dimensional multielectron quantum dots (2009)
  • Author(s): T. Sako, J. Paldus and G.H.F. Diercksen
  • Journal Title: Advances in Quantum Chemistry 58 Pages: 177-201
  • Peer Reviewed
• [Presentation] 人工原子のエネルギー準位構造:フントの規則と角運動量依存性 (2010)
  • Author(s): 佐甲徳栄
  • Organizer: 日本化学会
  • Place of Presentation: 大阪
  • Year and Date: 2010-03-26
• [Presentation] 人工原子のエネルギー準位構造:フントの規則と角運動量依存性 (2010)
  • Author(s): 佐甲徳栄
  • Organizer: 日本化学会
  • Place of Presentation: 近畿大学
  • Year and Date: 2010-03-26
• [Presentation] Origin of Hund's multiplicity rule in artificial atoms (2010)
  • Author(s): 佐甲徳栄
  • Organizer: One Day Symposium on Molecules in Intense Laser Fields and Related Phenomena
  • Place of Presentation: 東京
  • Year and Date: 2010-03-25
• [Presentation] Origin of Hund's multiplicity rule in artificial atoms (2010)
  • Author(s): Tokuei Sako
  • Organizer: One Day Symposium on Molecules in Intense Laser Fields and Related Phenomena
  • Place of Presentation: 東京大学
  • Year and Date: 2010-03-25
• [Presentation] フロケ理論と強レーザー場中の原子分子過程 (2010)
  • Author(s): 佐甲徳栄
  • Organizer: 宇宙空間原子分子過程研究会
  • Place of Presentation: 神奈川
  • Year and Date: 2010-03-01
• [Presentation] フロケ理論と強レーザー場中の原子分子過程 (2010)
  • Author(s): 佐甲徳栄
  • Organizer: 宇宙空間原子分子過程研究会
  • Place of Presentation: JAXA宇宙科学研究本部
  • Year and Date: 2010-03-01
• [Presentation] 人工原子におけるフントの規則 (2009)
  • Author(s): 佐甲徳栄
  • Organizer: 分子科学討論会
  • Place of Presentation: 名古屋
  • Year and Date: 2009-09-22
• [Presentation] 人工原子におけるフントの規則 (2009)
  • Author(s): 佐甲徳栄
  • Organizer: 分子科学討論会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2009-09-22
• [Presentation] 低次元人工原子のポリヤッドエネルギー準位構造 (2009)
  • Author(s): 佐甲徳栄
  • Organizer: 理論化学討論会
  • Place of Presentation: 東京
  • Year and Date: 2009-05-28
• [Presentation] 低次元人工原子のポリヤッドエネルギー準位構造 (2009)
  • Author(s): 佐甲徳栄
  • Organizer: 理論化学討論会
  • Place of Presentation: 東京大学
  • Year and Date: 2009-05-28
• [Presentation] 磁性原子を内包した人工原子の光励起スペクトル (2008)
  • Author(s): 佐甲徳栄
  • Organizer: 分子科学討論会
  • Place of Presentation: 福岡
  • Year and Date: 2008-09-24
• [Presentation] 磁性原子を内包した人工原子の光励起スペクトル (2008)
  • Author(s): 佐甲徳栄
  • Organizer: 第2回分子科学討論会
  • Place of Presentation: 福岡
  • Year and Date: 2008-09-24
• [Presentation] 磁気不純物原子を内包した人工原子のスピン電子構造 (2008)
  • Author(s): 佐甲徳栄
  • Organizer: 化学反応討論会
  • Place of Presentation: 札幌
  • Year and Date: 2008-06-02
• [Presentation] 磁気不純物原子を内包した人工原子のスピン電子構造 (2008)
  • Author(s): 佐甲徳栄
  • Organizer: 第24回化学反応討論会
  • Place of Presentation: 札幌
  • Year and Date: 2008-06-02