A muSR study of single crystals of the superconductor beta-PdBi2

Beta-PdBi2 is an intrinsically bulk superconducting topological metal. Despite a large number of experimental and theoretical works, the nature and microscopic origin of superconducting state in beta-PdBi2 is still under hot debate. Unresolved issues concerning the multigap superconductivity and the role of the topological surface state in the superconductivity make beta-PdBi2 an important system to study using musr technique. Furthermore, signatures of unconventional bulk superconductivity have also been reported recently in K-doped beta-PdBi2. It was predicted that the K-doped beta-PdBi2 is likely to be a 3D bulk topological superconductor and could undergo a topological superconducting phase transition between a trivial (undoped) and a topological (doped) superconductor. Here we propose to study the superconducting properties both undoped and doped beta-PdBi2 using the muSR technique.