Shubnikov-de Haas Oscillations in 2D PtSe₂: A fermiological Charge Carrier Investigation

High magnetic field and low temperature transport is carried out in order to characterize the charge carriers of PtSe₂. In particular, the Shubnikov-de Haas oscillations arising at applied magnetic field strengths 4.5\,T are found to occur exclusively in plane and emerge at a layer thickness of ≈ 18\,nm, increasing in amplitude and decreasing in frequency for thinner PtSe₂ flakes. Moreover, the quantum transport time, Berry phase, Dingle temperature and cyclotron mass of the charge carriers are ascertained. The emergence of weak antilocalization (WAL) lies in contrast to the presence of magnetic moments from Pt vacancies. An explanation is provided on how WAL and the Kondo effect can be observed within the same material. Detailed information about the charge carriers and transport phenomena in PtSe₂ is obtained, which is relevant for the design of prospective spintronic and orbitronic devices and for the realization of orbital Hall effect-based architectures.