Abstract

The physical properties including magnetic susceptibility, specific heat, and electrical resistivity of single crystals are reported for the compound CePd 1+ x Al 6− x ( x=0.5) which crystallizes in the tetragonal SrAu 2Ga 5-type structure (space group P4/ mmm). The compound was grown from an excess of molten Al flux from the respective elements and the crystal structure was established from single-crystal X-ray diffraction. Anomalies in the low temperature specific heat C p ( T) and electrical resistivity ρ( T) show that the compound undergoes ferromagnetic order at T C =2.8 K. In the ordered state, CePd 1.5Al 5.5 displays heavy fermion behavior with a Sommerfeld coefficient of ca. 500 mJ/mol-K 2.

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