Non-Fermi liquid behavior on heavy-fermion system Ce2Pt6Ga15
2012
We have grown single crystalline Ce2Pt6Ga15 and investigated the transport and magnetic properties by means of electrical resistivity, magnetic susceptibility, and specific heat measurements. Our results suggest that Ce2Pt6Ga15 is characterized as a heavy-fermion system with an electronic ground state of non-Fermi liquid character. The observed logarithmic temperature dependence of C4f / T at lower temperature region is a distinctive feature of a non-Fermi liquid state mediated by a two-dimensional antiferromagnetic spin fluctuation. The C4f/T reaches as much as about 0.7 J(mol-Ce)−1K−2 at 2K.
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