Affiliation:
1. Max-Planck-Institute for the Physics of Complex Systems, D-01187 Dresden, Germany
Abstract
Low dimensional rare-earth alloys reveal a rich phase diagram which always incorporate a ferromagnetic (FM) phase. Here we show that rare-earth ferromagnetism in low dimensions is due to double-exchange mechanism. We use the bosonized version of the one-dimensional Anderson lattice model in Toulouse limit to characterize the properties of this emerging FM phase. We give a comprehensive description of the FM ordering of the correlated electrons which appears at intermediate couplings and doping. Determine the critical properties of the phase transitions into the quantum disordered paramagnetic phases. The obtained phase transitions have been identified to be an order–disorder transition of the quantum random transverse-field Ising type.
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics
Cited by
1 articles.
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1. Erratum: Magnetism in rare-earth alloys;International Journal of Modern Physics B;2014-10-30