Skyrmion Lattice Manipulation in Bulk Materials Characterized with Small-Angle Neutron Scattering

Magnetic skyrmions, topologically protected spin structures, have emerged as a promising platform for next-generation spintronic devices due to their nanoscale size, stability, and unique dynamic properties. This dissertation focuses on the experimental manipulation of skyrmion lattices (SkLs) in bulk materials, investigating how external stimuli such as electric currents, thermal gradients, and magnetic fields influence SkL dynamics. By advancing our understanding of SkL manipulation, this work contributes to the foundational knowledge required for realizing skyrmion-based technologies. The primary experimental technique employed in this work is small-angle neutron scattering (SANS), which provides reciprocal space information on the structural and dynamic properties of SkLs in bulk systems. While the thesis predominantly explores skyrmions, it also briefly examines conventional superconductivity in Ta-doped CsV3Sb5, highlighting the contrast between its conventional behavior and claims of unconventional superconductivity in its material family.