Abstract
The magnetic properties and the electronic structure of CeB 2C 2 were investigated by magnetic susceptibility, electrical transport and the de Haas van Alphen (dHvA) oscillation measurements. The magnetic susceptibility and heat capacity show successive magnetic transitions at 6.4 and 7.1 K. By an analysis of the crystal field splitting fit to the temperature dependence of the inverse susceptibility, the energy differences of the 4f states were estimated at E, ∼80 K and E 2 ∼300 K. A considerably large cyclotron mass of 9.3 m 0 was found by the temperature dependence of the dHvA oscillation with the frequency of 5470 T along the [100] direction, although the apparent Kondo effect was not found in the transport properties.
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