Study of the spin-$\frac{3}{2}$ Hubbard-Kondo lattice model by means of the Composite Operator Method

Abstract

We study the spin-$\frac{3}{2}$ Hubbard-Kondo lattice model by means of the Composite Operator Method, after applying a Holstein-Primakov transformation. The spin and particle dynamics in the ferromagnetic state are calculated by taking into account strong on-site correlations between electrons and antiferromagnetic exchange among $\frac{3}{2}$ spins, together with usual Hund coupling between electrons and spins.

References in corpus (4)

• Softening and Broadening of the Zone Boundary Magnons in Pr0.63Sr0.37MnO3
• The Hubbard model within the equations of motion approach
• Theory of anomalous magnon softening in ferromagnetic manganites
• Spin wave dispersion softening in the ferromagnetic Kondo lattice model for manganites

Cited by in corpus (5)

• Emery vs. Hubbard model for cuprate superconductors: a Composite Operator Method study
• Composite Operator Method analysis of the underdoped cuprates puzzle
• The Composite Operator Method (COM)
• Exact solution of the 1D Hubbard model in the atomic limit with inter-site magnetic coupling
• The composite operator method route to the 2D Hubbard model and the cuprates