Field-Induced Antiferromagnetism in the Kondo Insulator
Field-Induced Antiferromagnetism in the Kondo Insulator
The Kondo lattice model, augmented by a Zeeman term, serves as a useful model of a Kondo insulator in an applied magnetic field. A variational mean field analysis of this system on a square lattice, backed up by quantum Monte Carlo calculations, reveals an interesting separation of magnetic field scales. …