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arXiv · 1006.5817

New magnetic phase in rb3c60 fullerene in normal state observed in torque experiments

J. Chigvinadze·V. Buntar·S. Ashimov·T. Machaidze·G. Donadze
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Abstract

For the first time, magnetic properties of fullerides have been studied using a torque technique. Rb3C60 single crystal has been investigated in these experiments. It was shown that this method is sensitive to the structural phase transition from s.c. to f.c.c. structure. A rearrangement of magnetic system in this material was observed at temperature T ~ 200 - 250 K. Our results clearly show, that this effect is a crossover to an ordered magnetic phase related to interaction of magnetic dipoles and is related to the distorted T' site. The effect is discussed in terms of cooperative Jahn-Teller effect.

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J. Chigvinadze, V. Buntar, S. Ashimov, T. Machaidze, G. Donadze. 2010-06-30. New magnetic phase in rb3c60 fullerene in normal state observed in torque experiments. https://arxiv.org/abs/1006.5817

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