Investigation of Fermi Surface Properties of Type-II Dirac Semimetal NiTe2 Using High Field Torque Magnetometry

Topological phases of materials have attracted enormous attention recently due to their potential applications in quantum computing and fast electronic devices. In this project, we have studied NiTe2, which is one of the topological compounds, using torque magnetometry. The torque signal measured under an applied field of 35 T shows clear de Haas-van Alphen (dHvA) oscillations. The oscillations are well-defined and consist of two major frequencies at F1 = 100 T and F2 = 400 T. Both frequencies vary as the angle between the sample surface and the magnetic field increase. Additionally, the amplitude of the oscillations decreases at higher temperatures. The Berry phase calculations and analyses of temperature-dependent dHvA data using the Lifshitz-Kosevich theory will also be presented.