A rotation-resolved de Haas-van Alphen study maps the Fermi surface of TaPtTe5 and finds agreement with DFT calculations that predict a nodal line encircled by a small cylindrical pocket.
Mechanical enhancement of quantum oscillations
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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.
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De Haas - van Alphen study of the Dirac nodal-line semimetal candidate TaPtTe$_5$
A rotation-resolved de Haas-van Alphen study maps the Fermi surface of TaPtTe5 and finds agreement with DFT calculations that predict a nodal line encircled by a small cylindrical pocket.