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Article Dans Une Revue Journal of Physics and Chemistry of Solids Année : 1997

Superexchange and magnetic relaxation in novel Eu-DOPED C60 phases

Résumé

EuxC6o compounds have been synthesized using high temperature solid-solid reaction. For x = 3 and 6 new crystalline structures appear. Mossbauer experiments reveal the simultaneous presence of Eu2+ and Eu3+ ions. In Eu6C60, ferromagnetic Eu pairs form at 65 K through a superexchange mechanism via the bucky balls. Higher clusters form at lower temperatures. In Eu3C60, relaxation effects can be related with the presence of an amorphous state.

Dates et versions

hal-04051266 , version 1 (30-05-2023)

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Citer

Younal Ksari-Habiles, Daniel Claves, Gérard Chouteau, Philippe Touzain, Claudine Jeandey, et al.. Superexchange and magnetic relaxation in novel Eu-DOPED C60 phases. Journal of Physics and Chemistry of Solids, 1997, 58 (11), pp.1771-1778. ⟨10.1016/S0022-3697(97)00064-4⟩. ⟨hal-04051266⟩
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