Heterostructures built from atomically thin two-dimensional (2D) materials form a rapidly advancing frontier of condensed matter physics. Within this family, several compounds exhibit intrinsic magnetic order. A prominent example is CrSBr, where spins align ferromagnetically within each layer but antiferromagnetically between layers. Recently, our team developed a technique to write magnetic domain walls between regions of opposite Néel vectors [arXiv:2503.04922]. Building on this result, we aim to investigate (i) the optical properties of these domain walls and (ii) their response to external electric and magnetic fields. Key open questions include: What is the characteristic size and internal structure of the domain walls? Do they couple to optically injected excitons? Can domain walls be manipulated with electric or magnetic fields? As a Master’s student, you will join our team to explore these questions. Depending on project needs and your personal interests, you could contribute to: • Fabrication of layered magnetic heterostructures • Optical spectroscopy at cryogenic temperatures • Scanning magnetometry experiments