Non-Fermi-liquid behavior of impurity spins in the anisotropic Heisenberg chain

Non-Fermi-liquid behavior in a Heisenberg chain with impurities

The thermodynamics of the anisotropic Heisenberg chain with boundary spin impurities

Properties of magnetic impurities embedded into an anisotropic Heisenberg chain with spin gap

Tunneling effect and non-Fermi liquid behavior induced by an impurity in the Hubbard chain

Local Magnetization in the Impure Spin 1/2 Anisotropic Ising-Heisenberg Chains

Non-Fermi liquid behavior from dynamical effects of impurity scattering in correlated Fermi liquids