Quantum critical response function in quasi-two dimensional itinerant antiferromagnets

C. M. Varma, Lijun Zhu, Almut Schröder

We re-examine the experimental results for the magnetic response function ${\chi }^{\prime \prime }(\mathbf{q},E,T)$, for $\mathbf{q}$ around the anti-ferromagnetic vectors $\mathbf{Q}$, in the quantum-critic…