Ferromagnetically ordered metal in the single-band Hubbard model

Abstract

We study a ferromagnetic instability in a single-band Hubbard model on the hypercubic lattice away from half filling. Using dynamical mean-field theory with the continuous-time quantum Monte Carlo simulations based on the segment algorithm, we calculate the magnetic susceptibility in the weak and strong coupling regions systematically. We then find how ferromagnetic fluctuations are enhanced when the interaction strength and density of holes are varied. The efficiency of the double flip updates in the Monte Carlo simulations is also addressed.

4 pages, 2 figures

References in corpus (6)

• Continuous-time Monte Carlo methods for quantum impurity models
• Three-Component Fermionic Atoms with Repulsive Interaction in Optical Lattices
• Variational cluster approach to ferromagnetism in infinite dimensions and in one-dimensional chains
• Spontaneously symmetry breaking states in the attractive SU$(N)$ Hubbard model
• Mott transitions in the Hubbard model with spatially-modulated interactions
• Ferromagnetic Instability for single-band Hubbard model in the strong-coupling regime

Cited by in corpus (1)

• Itinerant ferromagnetism in an SU(3) Fermi-Hubbard model at finite temperatures: A dynamical mean-field theory study