Kinetic Functionality and Magnetic Properties of Thin-Film Composed of Amphiphilic Ligands

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K14645
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 34010:Inorganic/coordination chemistry-related
• Research Institution: Nara Women's University
• Principal Investigator: Yoji Horii 奈良女子大学, 自然科学系, 助教 (90809485)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 単分子磁石 / ２次元薄膜 / LB法

Outline of Final Research Achievements

In this study, we have developed a new method for construction of thin film to realize ultra-high density memory devices based on single-molecule magnets (SMMs). Specifically, by reacting a phthalocyanine-porphyrin-terbium(III) complex with pyridyl groups with Pd2+ ions, we have formed highly concentrated and ordered two-dimensional thin films at the air-liquid interface. The thin films exhibit higher mechanical strength and perpendicular magnetic anisotropy than conventional methods, and their arrangement can be controlled by chemical modification of the molecules, which is expected to have applications in information storage and quantum computing.

Free Research Field

分子磁性体

Academic Significance and Societal Importance of the Research Achievements

究極の小型磁石である単分子磁石をきれいに配列させる技術を開発しました。この手法では、溶液をベースとした省エネルギーな方法で強固な薄膜を作ることが可能です。また、分子の構造を部分的に変化させることで、薄膜の磁性が向上することを見出しました。この薄膜は、データを高密度に記録するための媒体として有望であり、将来的にはより多くのデータを効率的に保存できる技術の実現が期待されます。