Flat-band engineering using molecular manipulation with a scanning tunneling microscope

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K18898
• 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: National Institute for Materials Science
• Principal Investigator: YOSHIZAWA Shunsuke 国立研究開発法人物質・材料研究機構, マテリアル基盤研究センター, 主任研究員 (60583276)
• Project Period (FY): 2021-07-09 – 2024-03-31
• Keywords: 走査型トンネル顕微鏡 / 原子層 / 表面・界面 / 原子・分子操作 / 緊急地震速報

Outline of Final Research Achievements

A scanning tunneling microscope (STM) allows us to observe the atomic-scale structure of the sample surface, as well as to move individual atoms or molecules adsorbed on the surface. Using this technique, we aimed to develop a method to control the physical properties of atomic layer materials by manipulating and arranging the atoms or molecules adsorbed on the surface. We created a program to automatically manipulate a large number of atoms or molecules, and also used density functional theory calculations to study the adsorption sites of carbon monoxide molecules on an atomic-layer indium formed on a silicon substrate. Related to the automation of STM operation, we constructed a system to avoid the influence of earthquakes during STM experiments by receiving the earthquake early warning.

Free Research Field

表面科学

Academic Significance and Societal Importance of the Research Achievements

この成果は、STMを用いた原子・分子操作の技術を向上させるものであり、当初計画の実現に向けた基盤となるものである。今後も継続して取り組んでいくことで、ナノテクノロジー分野における研究展開と応用が期待される。また、緊急地震速報を活用した地震回避システムは、STM実験の安定性を高め、より信頼性の高いデータ取得を可能にするものであり、本研究計画の枠を超えて利用価値があるものである。