Exact results on the Kondo-lattice magnetic polaron

Abstract

In this work we revise the theory of one electron in a ferromagnetically saturated local moment system interacting via a Kondo-like exchange interaction. The complete eigenstates for the finite lattice are derived. It is then shown, that parts of these states lose their norm in the limit of an infinite lattice. The correct (scattering) eigenstates are calculated in this limit. The time-dependent Schrödinger equation is solved for arbitrary initial conditions and the connection to the down-electron Green's function and the scattering states is worked out. A detailed analysis of the down-electron decay dynamics is given.

arXiv comment13 pages, 9 figures, accepted for publication in PRB

References in corpus (5)

• Theory of ferromagnetic (III,Mn)V semiconductors
• Electronic Correlations in Manganites
• Ferromagnetic spin-polaron on complex lattices
• Magnetic Phase Diagrams of Manganites-like Local-Moment Systems with Jahn-Teller distortions
• The ground state phase diagram of the diluted ferromagnetic Kondo-lattice model

Cited by in corpus (6)

• Magnetic Doublon Bound States in the Kondo Lattice Model
• Double Exchange model for nanoscopic clusters
• Local environment effects on a charge carrier injected into an Ising chain
• Low-temperature evolution of the spectral weight of a spin-up carrier moving in a ferromagnetic background
• Band model for the understanding of ferromagnetism in semiconductors and insulators
• Charge carrier relaxation dynamics in the one-dimensional Kondo lattice model