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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 jGd,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

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Giant exchange coupling and field-induced slow relaxation of magnetization in Gd<sub>2</sub>@C<sub>79</sub>N with a single-electron Gd-Gd bond.

Velkos G G   Krylov D S DS   Kirkpatrick K K   Liu X X   Spree L L   Wolter A U B AUB   Büchner B B   Dorn H C HC   Popov A A AA  

Chemical communications (Cambridge, England) 20180301 23


Magnetic properties of the azafullerene Gd<sub>2</sub>@C<sub>79</sub>N are studied by SQUID magnetometry. The effective exchange coupling constant j<sub>Gd,e</sub> 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<sup>-1</sup>. Low temperature AC measurements revealed field-induced millisecond-long relaxation of magnetization. ...[more]

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