Magnetic properties of interacting, disordered electron systems in d=2 dimensions

Details Magnetic properties of interacting, disordered electron systems in d=2 dimensions Magnetic properties of interacting, disordered electron systems in d=2 dimensions

2011-08-04

arxiv.org/abs/1108.1078v1

Physical Review B, 84, 155123 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 6 figures

Scientific paper

We compute the magnetic susceptibilities of interacting electrons in the presence of disorder on a two-dimensional square lattice by means of quantum Monte Carlo simulations. Clear evidence is found that at sufficiently low temperatures disorder can lead to an enhancement of the ferromagnetic susceptibility. We show that it is not related to the transition from a metal to an Anderson insulator in two dimensions, but is a rather general low temperature property of interacting, disordered electronic systems.

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