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Ferromagnetic Phases in the Kondo Lattice Model

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


Using an SO(4) invariant density-matrix renormalization group algorithm a sufficient numerical accuracy is achieved to demonstrate new ferromagnetic phase regions inside the paramagnetic area of the one-dimensional antiferromagnetic Kondo lattice model phase diagram. Spin-spin correlation functions, energy gap, number of singlets and other physical properties are investigated in detail. Direct measurements of the magnetization reveal continuous paramagnetic-ferromagnetic phase transitions.

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Philosophical Magazine B


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