Figure 2
From: Electron liquid state in the spin-\(\frac{1}{2}\) anisotropic Kondo lattice
\(\lambda\) as a function of \(J_x\) and u calculated for the chain (a), calculations of \(J_x\) as a function of \(\lambda\) in weak at \(u=0.2\) and strong at \(u=1\) anisotropy of the exchange interaction (b) (dotted and blue lines correspond to instable and stable states of electron liquid). A spectrum of the Kondo chain (c) as a function of the wave vector calculated at \(u=0.2\), \(\lambda =0.3\) and \(J_x=0.776\).
