Figure 3
From: Gapped electron liquid state in the symmetric Anderson lattice, Kondo insulator state
(Color online) A spectrum of the symmetric Anderson chain as a function of the wave vector calculated under the condition \(v<2\sqrt{2} \lambda\) for \(v=0.2\), \(\lambda =0.2\): \(\Delta =0.1656\) at \(H=0\) (a), \(\Delta = 0\) at \(H_c=0.0828\) (b).
