Giant exchange coupling and field-induced slow relaxation of magnetization in Gd₂@C₇₉N with a single-electron Gd-Gd bond.

ABSTRACT: Magnetic properties of the azafullerene Gd₂@C₇₉N are studied by SQUID magnetometry. The effective exchange coupling constant j_Gd,e between the Gd spins and the spin of unpaired electron residing on the single-electron Gd-Gd bond is determined to be 170 ± 10 cm^-1. Low temperature AC measurements revealed field-induced millisecond-long relaxation of magnetization.

SUBMITTER: Velkos G 

PROVIDER: S-EPMC5885278 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature