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Localized Spin Ordering in Kondo Lattice Models

McCulloch, I P; Juozapavicius, A; Rosengren, A; Gulacsi, Miklos


Using a non-Abelian density matrix renormalization group method we determine the phase diagram of the Kondo lattice model in one dimension, by directly measuring the magnetization of the ground state. This allowed us to discover a second ferromagnetic phase missed in previous approaches. The phase transitions are found to be continuous. The spin-spin correlation function is studied in detail, and we determine in which regions the large and small Fermi surfaces dominate. The importance of...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Physical Review B


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