Grueneisen Ratio Divergence at the Quantum Critical Point in CeCu_{6-x}Ag_x

R. Kuechler, P. Gegenwart, K. Heuser +3

The heavy fermion system CeCu${}_{6-x}$Ag${}_x$ is studied at its antiferromagnetic quantum critical point, $x_c=0.2$, by low temperature ($T\ge 50$ mK) specific heat, $C(T)$, and vol…