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Probing the Fermi surface with Quantum Oscillation Measurements in the Dirac semimetal TaNiTe$_5$
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abstract
We report a detailed investigation of the Fermi surface in the layered Dirac semimetal TaNiTe$_5$. We probed the magnetization, magnetic torque and magnetoresistance in high-quality single crystals. Pronounced Shubnikov - de Haas (SdH) and de Haas - van Alphen (dHvA) oscillations are observed in magnetic fields above 3T and at temperatures of up to 22K. Multiple fundamental frequencies and light effective quasiparticle masses are obtained by fast Fourier transformation (FFT) and Lifshitz-Kosevich (LK) formula fits. The high resolution of the low-temperature FFT spectra allows us to investigate individual peaks in detail for the magnetic fields applied along all three crystallographic axes and the planes in between. Our investigation can confirm the density functional theory (DFT) calculated band structure and its corresponding Fermi surface.
Forward citations
Cited by 2 Pith papers
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Mechanical enhancement of quantum oscillations
The enhanced quantum oscillations in TaNiTe5 are explained as a mechanical artifact: the AC current makes the sample vibrate in the magnetic field, and the de Haas-van Alphen torque modulates the resulting motional voltage.
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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.
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