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Samad Razzaq gains his PhD

Samad Razzaq completed his PhD in March 2025. His research explored the atomistic physics of topological excitations in low-dimensional materials, focusing on monoatomic indium nanowires on silicon as a prototypical model system. Samad developed a microscopic theory of chiral solitons — localized wave-like distortions that connect different charge density wave phases and carry quantized charge. Using ab initio molecular dynamics simulations and experimental data, he revealed how these topological solitons arise from strong electron-phonon coupling and how their interactions follow well-defined algebraic rules. His work opens up new possibilities for soliton-based logic operations and quantum devices beyond traditional electronics.