The quantum phase transition between paramagnetic and antiferromagnetic
phases of the Kondo lattice model with Ising anisotropy in the intersite
exchange is studied within the framework of extended dynamical mean-field
theory. Nonperturbative numerical solutions at zero temperature point to a
continuous transition for both two- and three-dimensional magnetism. In the
former case, the transition is associated with critical local physics,
characterized by a vanishing Kondo scale and by an anomalous exponent in the
dynamics close in value to that measured in heavy-fermion CeCu_{5.9}Au_{0.1}.Comment: 4 pages, 3 figures. Version published in Phys. Rev. Let
