Author/Authors :
Tiwari، نويسنده , , Archana and Dantelle، نويسنده , , Geraldine and Porfyrakis، نويسنده , , Kyriakos and Watt، نويسنده , , Andrew A.R. and Ardavan، نويسنده , , Arzhang and Briggs، نويسنده , , G. Andrew D. Briggs، نويسنده ,
Abstract :
The magnetic properties of ErSc 2 N @ C 80 , Er 2 ScN @ C 80 and Er 3 N @ C 80 metallofullerenes are characterized in the temperature range 2 to 300 K up to a magnetic field of 7 T. The magnetic susceptibility of these fullerenes follows the Curie–Weiss law. The fitting parameters to the Curie–Weiss law provide an effective magnetic moment μ eff of Er 3 + ion in each of the fullerenes. The magnetic moment decreases with the increase in number of Er 3 + ions inside the cage. This is related to crystal-field effects, intramolecular interactions and the local quenching of the angular momentum of the ion within the fullerene cage.
