Nanowire growth on a CNT and low-dimensional superconducting properties for quantum devices

• Project/Area Number: 18K19025
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 29:Applied condensed matter physics and related fields
• Research Institution: Keio University
• Principal Investigator: MAKI Hideyuki 慶應義塾大学, 理工学部(矢上), 教授 (10339715)
• Project Period (FY): 2018-06-29 – 2021-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
• Keywords: カーボンナノチューブ / 超電導ナノワイヤ / 超伝導 / ナノワイヤー

Outline of Final Research Achievements

We studied about the development of the microfabrication technique with a suspended carbon nanotube and the investigation of the quantum transport in the low-dimensional superconductor with a thin superconducting nanowire.

Academic Significance and Societal Importance of the Research Achievements

ナノカーボン材料のみに依存した低次元量子物性探索は、カーボン系材料の持つ物性の枠を超えることはできないためいずれ限界を迎えることが問題であったが、超伝導ナノワイヤーによって、高品質ナノワイヤーを実現すること可能となり、次世代の量子デバイス開発に応用可能である。