Magnetic ordering at 20 K and below in the C60 and C70 based fullerene salts

被引:0
|
作者
Mrzel, A [1 ]
Umek, P [1 ]
Cevc, P [1 ]
Omerzu, A [1 ]
Mihailovic, D [1 ]
机构
[1] Jozef Stefan Inst, Ljubljana 1000, Slovenia
来源
关键词
fullerene; electron spin resonance; optical properties;
D O I
暂无
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A number of different C-60 and C-70 fullerene monoderivatives were synthesized and doped with tetrakis(dimethylamino)ethylene (TDAE) and cobaltocene (Cp2Co) to create charge transfer complexes with the aim of finding novel magnetic materials based on fullerenes. In this work X-band electron spin resonance (ESR) measurements are presented together with characterization of these charge transfer complexes using infrared and ultraviolet (UV)/Vis/near infrared spectroscopy. In most of these materials interactions between electronic spins on fullerene derivatives is found to be antiferromagnetic including C-70 except for 3-aminophenyl-methane[60]fullerene doped with cobaltocene which shows ferromagnetic behaviour below 20 K. (C) 1998 Elsevier Science Ltd. All rights reserved.
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页码:603 / 606
页数:4
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