MAGNETIC-PROPERTIES OF TDAE-C60 AND TDAE-C70 - A COMPARATIVE-STUDY

被引：99

作者：

TANAKA, K

ZAKHIDOV, AA

YOSHIZAWA, K

OKAHARA, K

YAMABE, T

YAKUSHI, K

KIKUCHI, K

SUZUKI, S

IKEMOTO, I

ACHIBA, Y

机构：

[1] INST MOLEC SCI,OKAZAKI,AICHI 444,JAPAN

[2] ACAD SCI UZSSR,DEPT THERMOPHYS,TASHKENT 700135,UZBEKISTAN,USSR

[3] TOKYO METROPOLITAN UNIV,DEPT CHEM,TOKYO 19203,JAPAN

来源：

PHYSICS LETTERS A | 1992年 / 164卷 / 02期

关键词：

D O I：

10.1016/0375-9601(92)90707-S

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic properties of C60 and C70 complexes with tetrakis (dimethylamino)ethylene (TDAE) have been studied by Faraday-balance magnetization and ESR measurements. It has been confirmed that TDAE-C60 possesses about one radical spin per molecule and shows a ferromagnetic-type transition at T(c) = 16.7-17.5 K. The appearance of a new broad and intense ESR signal below T(c) suggests that the radical spins in the magnetically ordered state localize on each C60 molecule and are ferromagnetically correlated. On the contrary, TDAE-C70 demonstrates the usual Curie-type narrow ESR peak at all temperatures suggesting the absence of a ferromagnetic transition at least down to 4.5 K.

引用

页码：221 / 226

页数：6

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