Sharif Digital Repository

Magnetometry has always been an important topic in physics, and numerous methods have been developed to measure the magnetic properties of materials. However, performing magnetometry at the microscale—especially in single-particle systems and on biological systems—remains fundamentally challenging. In this study, optical tweezers were used as a precise tool to investigate the magnetic interactions of particles under the influence of an external magnetic field, with the aim of assessing the potential and capability of this method as a means for magnetometry and studying magnetic interactions at the microscale. In this context, the behavior of magnetic particles in the presence of the field...