MAGNETIC-PROPERTIES OF TDAE-C-60 AND TDAE-C-70 WHERE TDAE IS TETRAKIS(DIMETHYLAMINO)ETHYLENE

被引：134

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] KYOTO UNIV,FAC ENGN,DIV MOLEC ENGN,KYOTO 60601,JAPAN

[2] TOKYO METROPOLITAN UNIV,DEPT CHEM,HACHIOJI,TOKYO 19203,JAPAN

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.47.7554

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic properties of C60 and C70 complexes with tetrakis(dimethylamino)ethylene (TDAE) have been studied based on the measurements of the Faraday-balance magnetization and the electron-spin resonance (ESR). It has been found that both TDAE-C60 and TDAE-C70 possess about one radical spin per fullerene molecule. TDAE-C60 has been confirmed to show a ferromagnetic-type transition at T(c) = 16.7-17.5 K. Appearance of a broad and intense ESR signal below T(c) for TDAE-C60 suggests that the radical spins in the magnetically ordered state are rather localized on each C60 molecule and are ferromagnetically correlated. On the other hand, TDAE-C70 does not show ferromagnetism at temperatures above 4.5 K.

引用

页码：7554 / 7559

页数：6

共 24 条

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