Development of new quantum phenomena in designed magnetic lattices by organic radicals

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03695
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Osaka Prefecture University
• Principal Investigator: Hosokoshi Yuko 大阪府立大学, 理学(系)研究科(研究院), 教授 (50290903)
• Co-Investigator(Renkei-kenkyūsha): Ono Toshio 大阪府立大学, 理学系研究科, 准教授 (40332639) ; Yamaguchi Hironori 大阪府立大学, 理学系研究科, 准教授 (70581023)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 量子スピン系 / 有機ラジカル / 高次元磁性体 / スピン液体 / BEC / 磁化測定 / 比熱測定 / 結晶構造

Outline of Final Research Achievements

The aim of this study is to develop novel quantum magnetic states on various spin lattices realized by organic radicals, which form ideally isotropic spin system. Rational designing toward various spin lattices has been developed by tuning the π-conjugation on organic radical molecules. High-dimensional spin lattices have been realized by polyradicals and/or tuning the dihedral angle between π-conjugated planes. Series compounds have been synthesized where both of the sign and the magnitude of the magnetic interactions have been tuned. Their physical properties in magnetic fields at low temperature have been examined. The properties of spin-liquid state have been elucidated, and the quantum effect even in three-dimensional magnetic ordered state have been successfully observed.

Free Research Field

分子磁性