Study of microscopic superconducting properties of and InSn4 via μSR

Topological materials, distinguished by their unique electronic properties, are crucial in quantum research. These materials, including insulators and semimetals, exhibit characteristics like high electron mobility, spin polarization, and resilience to disorder. Recent discoveries of superconductivity in topological nodal-line semimetals, such as PtSn4, PdSn4, and AuSn4, highlight their potential for unconventional superconductivity and novel quantum phenomena. This study focuses on InSn4 and In3Sn, both exhibiting bulk type-II superconductivity. InSn4, with a Dirac crossing at the Fermi surface, demonstrates topological characteristics. By investigating these compounds, we aim to deepen our understanding of the pairing mechanisms in topological superconductors and unlock new insights into their distinctive properties.