H. Fukuda et al., Anomalous behavior of physical properties in RMg2Ni9 (R = Ce and Pr) with a two-dimensional rare earth arrangement, PHYSICA B, 261, 1999, pp. 894-895
We performed the magnetic susceptibility, electrical resistivity and specif
ic heat measurements on the new compounds RMg2Ni9 (R = Ce and Pr) crystalli
zed in a PuNi3-type hexagonal. The results indicate that CeMg2Ni9 is a typi
cal valence fluctuated compound with gamma = 80 mJ/mol CeK2, but it shows n
either the - ln T dependence in the rho-T curve nor any broad peak in %-T c
urve. It seems likely that the unusual physical properties of RMg2Ni9 are i
nfluenced by the two dimensionality of the rare earth arrangement. (C) 1999
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