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In this research we focus on proving that the Fermi-surface of a one dimensional kondo lattice between localized and non-localized electrons is large. We focus on methods apart from the Density matrix renormalization group (DMRG) in the study of Fermi-surface of a one dimensional kondo lattice model.
We prove that the Fermi-surface of a one-dimensional kondo lattice model is large following the different methods.
The conventional KLM and kondo-heinsenberg model unlike other model kept the FS conserved with JH =0 or not using wave vector KFC to obtain the proceeded value.