MOLECULAR FERROMAGNETISM IN C60.TDAE

被引:40
作者
SESHADRI, R
RASTOGI, A
BHAT, SV
RAMASESHA, S
RAO, CNR
机构
[1] INDIAN INST SCI,SOLID STATE & STRUCT CHEM UNIT,BANGALORE 560012,KARNATAKA,INDIA
[2] INDIAN INST SCI,CSIR,CTR EXCELLENCE CHEM,BANGALORE 560012,KARNATAKA,INDIA
关键词
Alkali metals - Carbon - Ferromagnetic materials - Molecular crystals - Organic compounds - Superconductivity;
D O I
10.1016/0038-1098(93)90715-Y
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
C60.TDAE (TDAE = tetrakis(dimethylamino)ethylene) with a T(c) of approximately 16K is probably the best example of an organic molecular ferromagnet known to date. Based on ESR studies, we demonstrate that C60.TDAE is a quasi one-dimensional spin one-half Heisenberg ferromagnet, with the C60 units being entirely responsible for the magnetism. C60-C60 interactions responsible for superconductivity in alkali metal doped C60 seem to be essential for the magnetism of C60.TDAE as well.
引用
收藏
页码:971 / 974
页数:4
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