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

Abstract

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.

5 pages, 6 figures

References in corpus (5)

• Many-Body Physics with Ultracold Gases
• Disordered quantum gases under control
• Pauli spin susceptibility of a strongly correlated two-dimensional electron liquid
• Competition between Anderson localization and antiferromagnetism in correlated lattice fermion systems with disorder
• Interacting lattice electrons with disorder in two dimensions: Numerical evidence for a metal-insulator transition with a universal critical conductivity

Cited by in corpus (5)

• Ferromagnetic Instability in a Doped Band-Gap Semiconductor FeGa${}_3$
• Finite-size effects in transport data from Quantum Monte Carlo simulations
• Doping-dependent metal-insulator transition in a disordered Hubbard model
• Metal-insulator transition in the disordered Hubbard model of the Lieb lattice
• Thermodynamic properties of correlated fermions in lattices with spin-dependent disorder