Mechanical enhancement of quantum oscillations

Abstract

We investigate quantum oscillation measurements in the Dirac nodal-line semimetal TaNiTe${}_5$ which exhibit a strongly enhanced amplitude in the magnetoresistance. We show that mechanical properties of the measurement setup in combination with de Haas - van Alphen oscillations in the magnetic torque can cause this enhancement in the measured resistance, without involvement of any topological properties in this material. To support the empirical data, a numerical model is provided, showing good agreement.