Specific heat of CeIn3-xSnx single crystals in the vicinity of the quantum critical point

Abstract

We report on results of low-temperature specific heat experiments on single crystals of the cubic alloy CeIn 3-xSnx (x = 0:55; 0:60; 0:65; and 0.80). The measurements support three-dimensional critical spin fluctuations in the vicinity of the magnetic instability, i.e. for xc ≈ 0:67; where the antiferromagnetic order vanishes.