Author/Authors :
Bartl، نويسنده , , A. and Müller، نويسنده , , L. and Frِhner، نويسنده , , J. and Eckert، نويسنده , , D. and Wolf، نويسنده , , M. and Dunsch، نويسنده , , L.، نويسنده ,
Abstract :
An organic ferromagnetic fullerene complex was prepared based on C60 with tetrakisdimethylaminoethylene (TDAE). Temperature dependent X-band ESR measurements on the TDAE-C60 samples show strong single-line spectra without any hint to a hyperfine splitting. Magnetization measurements indicate ferromagnetic ordering below 16 K in all investigated TDAE-C60, samples. After leaving TDAE-C60) powder in a sealed quartz tube with He for 8 weeks the zero-field magnetization strongly increased. Typical extrinsic magnetic properties characterizing a ferromagnetic material such as hysteresis, coercivity and remanence were found at low temperatures.
Keywords :
Magnetic hysteresis , Organic ferromagnet , C60 with tetrakisdimethylaminoethylene , Electron paramagnetic resonance spectroscopy
