The book is dedicated to the study of theoretical tools in spin models in magnetism. The
book presents the basic tools to treat spin models in magnetic systems such as: spin waves …

Atomistic spin dynamics simulations provide valuable information about the energy
spectrum of magnetic materials in different phases, allowing one to identify instabilities and …

We study the statistical mechanics and the equilibrium dynamics of a system of classical
Heisenberg spins with frustrated interactions on ad-dimensional simple hypercubic lattice, in …

We use a combination of first-principles density-functional calculations and spin-dynamics
simulations to explain the unusual diffuse inelastic neutron scattering in the hexagonal …

While it is established that the pinch point scattering pattern in spin ice arises from an
emergent Coulomb phase associated with a magnetic moment that is divergence free, more …

Substitution effects of Os for Ru in α-RuCl3 are investigated in a wide composition range of
0≤ x≤ 0.67 in Ru1− x Os x Cl3 by X-ray and electron diffraction, magnetic susceptibility …

In atomistic spin dynamics simulations, the time cost of constructing the space-and time-
displaced pair correlation function in real space increases quadratically as the number of …

In this study, we investigate the spin dynamics of a frustrated Kagom\'e lattice system,
focusing on the nonlinearity of spin oscillations induced by a harmonic magnetic field under …

This thesis focuses on the development, application, and high-performance implementation
of numerical methods for simulating quantum many-body systems. In the first chapter, I …