null
(Ed.)
We report here the properties of single crystals of
La
2
Ni
2
In
. Electrical resistivity and specific heat measurements concur with the results of density functional theory calculations, finding that
La
2
Ni
2
In
is a weakly correlated metal, where the Ni magnetism is almost completely quenched, leaving only a weak Stoner enhancement of the density of states. Superconductivity is observed at temperatures below 0.9 K. A detailed analysis of the field and temperature dependencies of the resistivity, magnetic susceptibility, and specific heat at the lowest temperatures reveals that
La
2
Ni
2
In
is a dirty type-II superconductor with likely
s
-wave gap symmetry. Nanoclusters of ferromagnetic inclusions significantly affect the subgap states resulting in a nonexponential temperature dependence of the specific heat
C
(
T
)
at
T
≪
T
c
.
more »
« less
