Abstract
We investigate the incompletely saturated ferromagnetic phase which occurs at strong coupling in the partially filled one-dimensional (1D) Kondo lattice model. The double-exchange interaction responsible for the ferromagnetic ordering is absent in dilute Kondo systems, and is a missing element in nearly all theoretical treatments of the model. We discuss how double-exchange arises in the system, even though the Kondo coupling is antiferromagnetic, and show that at strong coupling it favors an alignment of the spins of unpaired localized moments. A ground-state phase diagram for the localized moments is given, with double-exchange interactions included, and is in complete qualitative agreement with numerical simulations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
