Exploration of physical properties acompanied by strongly correlated electron systems based on organic chiral conductors

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03792
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional solid state chemistry
• Research Institution: Ibaraki University
• Principal Investigator: Nishikawa Hiroyuki 茨城大学, 理学部, 教授 (40264585)
• Co-Investigator(Kenkyū-buntansha): 山田 順一 兵庫県立大学, 物質理学研究科, 教授 (90191311)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 分子性導体 / 超伝導 / 強相関電子系 / キラリティー / 電気伝導性 / 磁性 / 結晶構造 / 電子状態

Outline of Final Research Achievements

In order to explore new solid state properties of molecular based strongly correlated electron systems with a lack of spatial inversion symmetry, organic chiral electron donors composed of reduced π-electron system donors and TTP-donors, and their charge transfer salts were newly synthesized. Magnetic and transport properties of the radical salts of the chiral π-reduced donor (S,S)-DM-MeDH-TTP have been investigated, and the electronic state of the insulating state at ambient pressure was revealed to be a charge order state. We also succeeded in the syntheses of new chiral TTP donors including (S,S)-DMDHDA-TTP, and revealed the physical properties, crystal structures and band structures. Furthermore, syntheses, structure analyses, and measurements of physical properties of the corresponding racemic donors have been carried out to investigate the effect of chirality.

Free Research Field

化学