Analyzes of the Magnetic Mechanism of Fullerene-Containing Ferromagnets

富勒烯的电荷转移配合物，特别是TDAE- c_ <60>，其中TDAE为四（二甲胺）乙烯，在16-17K发生铁磁跃迁。从那时起，人们进行了各种各样的实验研究，以寻找铁磁性的本质。然而，研究表明它具有不同寻常的铁磁性。本研究旨在从实验和理论两方面阐明TDAE-C_<60>铁磁性的发生。包括对阴离子C_<60>的特殊电子性质的研究，t大-C_<60>复合晶体中铁磁相关的本质，以及C_<60>-模拟阴离子的电子结构的研究。本研究最重要的发现是澄清了tdaic <60>的自旋玻璃行为，而不是普通的铁磁性。

It was 1991 when charge transfer complex of fullerene, especially TDAE-C_<60>, where TDAE is tetrakis (dimethylamino) ethylene, shows ferromagnetic transition at 16-17K.Since then, there have been various experimental studies in search of the essence of that ferromagnetism. However, studies have been showing its unusual ferromagnetism.The present study was intended to clarify the occurrence of ferromagnetism of TDAE-C_<60> both experimentally and theoretically. It contains the studies for peculiar electronic property of anionic C_<60>, essence of ferromagnetic correlation in TDAE-C_<60> complex crystal, and electronic structure of C_<60>-analog anions. The most important finding in the present study is the clarification of spin-glassy behavior of TDAE-C_<60> rather than the ordinary ferromagnetism.