Creation of Asymmetric Coordination Magnetic Compounds

2020 Fiscal Year Final Research Report

• Project Area: Coordination Asymmetry: Design of Asymmetric Coordination Sphere and Anisotropic Assembly for the Creation of Functional Molecules
• Project/Area Number: 16H06521
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: University of Tsukuba
• Principal Investigator: Tokoro Hiroko 筑波大学, 数理物質系, 教授 (50500534)
• Project Period (FY): 2016-06-30 – 2021-03-31
• Keywords: 固体物性 / 磁性 / 相転移

Outline of Final Research Achievements

In this work, we focused on asymmetry from the viewpoint of magnetism among various solid-state properties, and aimed to find the correlation effect and physical properties derived from asymmetry in magnetic coordination compounds.
During this research period, we report various research results, i.e., a development of a superionic conductive ferromagnetic metal complex with a chiral structure, development of a magnetic oxide with second harmonic generation based on asymmetric crystal structure, observation of a terahertz absorption in an asymmetric structure of magnetic metal complex, theoretical prediction of phase transition in an asymmetric structure, observation of the propagation of phase transition accompanied by symmetry breaking, and observation of the correlation effect between unharmonic phonon and long-range magnetic ordering in a molecule-based magnet, etc.

Free Research Field

固体物性科学、物理化学

Academic Significance and Societal Importance of the Research Achievements

本研究で報告した、磁性化合物におけるアシンメトリーに由来した様々な相関効果や物性現象は、アシンメトリーとスピンや磁気秩序が種々の固体物性に及ぼす影響を具体的な物性現象として観測したものであり、固体科学分野における物性開発の研究に大きく貢献するものである。