Physical Properties of the Spin Hamiltonian on Honeycomb Lattice Samples with Kekul\'e and Vacuum Polarization Corrections

TL;DR

This paper investigates the magnetic and thermodynamic properties of a honeycomb lattice spin system at low temperatures, incorporating Kekulé and vacuum polarization effects, using Monte Carlo simulations to analyze their impact on physical quantities.

Contribution

It introduces the effects of Kekulé scalar exchange and QED vacuum polarization corrections into spin lattice calculations on a honeycomb structure, providing new insights into their influence.

Findings

Kekulé and vacuum polarization significantly affect magnetization and susceptibility.

Physical properties vary notably with magnetic field and temperature.

Simulation results reveal distinct features due to quantum corrections.

Abstract

Magnetic and thermodynamical properties of a system of spins in a honeycomb lattice, such as magnetization, magnetic susceptibility and specific heat, in a low-temperature regime are investigated by considering the effects of a Kekul\'e scalar exchange and QED vacuum polarization corrections to the interparticle potential. The spin lattice calculations are carried out by means of Monte Carlo simulations. We present a number of comparative plots of all the physical quantities we have considered and a detailed analysis is presented to illustrate the main features and the variation profiles of the properties with the applied external magnetic field and temperature.