Elsevier

Physics Procedia

Volume 75, 2015, Pages 56-61
Physics Procedia

Single Crystal Growth and Electronic State of UPd2Cd20

https://doi.org/10.1016/j.phpro.2015.12.009Get rights and content
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Abstract

We succeeded in growing single crystals of UPd2Cd20 by the Cd self-flux method. This compound crystallizes in the cubic CeCr2Al20-type structure. From the low-temperature electrical resistivity and Kadowaki-Woods relation, the electronic specific heat coefficient γ is estimated to be about 400mJ/mol ·K2. The magnetic susceptibility of UPd2Cd20 indicates a broad max-imum at 6.6K and a rapid decrease at 5.0K, which correspond to the formation of the heavy fermion state and the antiferromagnetic transition, respectively. These experimental results strongly suggest that UPd2Cd20 is a new heavy fermion antiferromagnet.

Keywords

heavy fermion
antiferromagnet
uranium intermetallic compound
UPd2Cd20

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Peer-review under responsibility of the Scientific Committee of ICM 2015.