Data from: Quantum oscillations of nonlinear electrical transport in a topological Dirac semimetal
Data files
Mar 06, 2026 version files 386.32 KB
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Figure_2a.xlsx
15.35 KB
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Figure_2b.xlsx
13.46 KB
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Figure_2c.xlsx
9.22 KB
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Figure_2d.xlsx
9.14 KB
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Figure_2e.xlsx
9.27 KB
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Figure_3a.xlsx
9.45 KB
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Figure_3b.xlsx
9.46 KB
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Figure_3c.xlsx
13.31 KB
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Figure_3d.xlsx
13.25 KB
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Figure_3e.xlsx
11.28 KB
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Figure_3f.xlsx
9.08 KB
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Figure_4a.xlsx
18.95 KB
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Figure_4b.xlsx
19.52 KB
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Figure_4c.xlsx
18.60 KB
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Figure_4d.xlsx
13.11 KB
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Figure_4e.xlsx
11.56 KB
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Figure_4f.xlsx
13.02 KB
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Figure_4g.xlsx
11 KB
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Figure_4h.xlsx
10.99 KB
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Figure_4i.xlsx
11.28 KB
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Figure_4j.xlsx
10.96 KB
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Figure_4k.xlsx
10.31 KB
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Figure_4l.xlsx
10.95 KB
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Figure_5a.xlsx
21.86 KB
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Figure_5b.xlsx
9.14 KB
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Figure_5c.xlsx
9.89 KB
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Figure_5d.xlsx
9.78 KB
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Figure_6.xlsx
24.85 KB
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Figure_7.xlsx
17.06 KB
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README.md
11.21 KB
Abstract
Dataset DOI: 10.5061/dryad.3r2280gvt
Description of the data and file structure
All uploaded data files are named according to the corresponding figure numbers in the manuscript titled “Quantum oscillations of nonlinear electrical transport in a topological Dirac semimetal.” Complete experimental details and measurement protocols are provided in the main manuscript and/or in the Supplementary Materials section. We would be happy to answer any additional questions or provide further assistance if you contact the corresponding author via email.
Files and variables
File: Figure_2a.xlsx
Description: This dataset contains the measured first-harmonic resistance (R₁ω) of a 5-nm α-Sn film as a function of magnetic field, along with the polynomial background used to isolate the oscillatory component. These data demonstrate quantum oscillations in linear transport.
Variables
Variables:
- B: magnetic field (T).
- R1ω: measured first-harmonic resistance (Ω).
File: Figure_2b.xlsx
Description: Description
This dataset shows the background-subtracted oscillatory resistance plotted versus inverse magnetic field. It represents the quantum oscillation signal used to extract oscillation frequency and phase.
Variables:
- 1/B: Inverse magnetic field (T -1)
- ΔR1ω: oscillatory component of resistance (Ω).
File: Figure_2c.xlsx
Description: This dataset contains Landau level indices assigned to oscillation extrema as a function of inverse magnetic field. It is used to determine oscillation frequency and Berry phase.
Variables:
- 1/B: Inverse magnetic field (T -1)
- N: Landau level index (unitless).
File: Figure_2d.xlsx
Description: This dataset contains oscillation peak amplitudes measured at different temperatures. It is used to extract the cyclotron effective mass using temperature-dependent fitting.
Variables:
- T: temperature (K).
- ΔR1ω: oscillation amplitude (Ω).
File: Figure_2e.xlsx
Description: Dingle plot- This dataset provides the logarithmic amplitude analysis used to determine the quantum scattering time and mobility through Dingle fitting. The vertical axis is given below.
ln{[|∆R_1ω |sinh(λ)]⁄((4R_0 λ) )}.
Variables:
- B: Magnetic field
- ΔR1ω: oscillation amplitude (Ω).
λ=(2π^2 k_B Tm^*)/ℏeB
- KB: Boltzmann constant,
- T: Temperature (K),
- m*:c yclotron effective mass
- h: reduced Planck constant,
- tq: the quantum lifetime.
File: Figure_3a.xlsx
Description: This dataset contains second-harmonic voltage as a function of AC amplitude, demonstrating the quadratic dependence characteristic of nonlinear transport.
Variables:
- I: current amplitude (A).
- V2ω: second-harmonic voltage (V).
File: Figure_3b.xlsx
Description: This dataset shows second-harmonic resistance derived from voltage measurements as a function of current amplitude, confirming linear scaling expected for nonlinear resistance.
Variables:
- I: current amplitude (A).
- R2ω: second-harmonic resistance (Ω).
File: Figure_3c.xlsx
Description: This dataset contains second-harmonic resistance measured versus magnetic field, including the background fit used to isolate oscillatory features.
Variables:
- B: magnetic field (T).
- R2ω: second-harmonic resistance (Ω).
File: Figure_3d.xlsx
Description: This dataset shows the background-subtracted nonlinear resistance oscillations plotted versus inverse magnetic field.
Variables:
- 1/B: Inverse magnetic field (T -1)
- ΔR2ω: oscillatory component of resistance (Ω).
File: Figure_3e.xlsx
Description: This dataset contains the fast Fourier transform of nonlinear oscillation data used to determine oscillation frequency.
Variables:
- f: frequency of oscillation (Unit- Tesla)
File: Figure_3f.xlsx
Description: This dataset lists Landau level indices assigned to oscillation extrema for nonlinear transport, confirming periodicity in inverse magnetic field.
Variables
- 1/B: Inverse magnetic field (T -1)
- N: Landau level index (unitless).
File: Figure_4a.xlsx
Description: This dataset contains first-harmonic resistance oscillations measured with current applied along the ΓM direction in momentum space. The data are normalized to the non-oscillating background and are used to examine the directional dependence of linear transport.
Variables:
- 1/B: inverse magnetic field (T ⁻¹).
- ΔR₁ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4b.xlsx
Description: First-harmonic oscillation data measured with current along the ΓK direction, showing minimal change in oscillation behavior with orientation.
Variables:
- 1/B: inverse magnetic field (T ⁻¹).
- ΔR₁ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4c.xlsx
Description: First-harmonic oscillation data measured with current along the ΓM' direction, demonstrating weak directional dependence of linear transport oscillations.
Variables
- 1/B: inverse magnetic field (T ⁻¹).
- ΔR₁ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4d.xlsx
Description: Second-harmonic resistance oscillations measured with current along ΓM, showing strong nonlinear oscillation amplitude.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- ΔR₂ω (normalized): normalized nonlinear oscillation amplitude (unitless).
File: Figure_4e.xlsx
Description: Second-harmonic oscillations measured with current along ΓK, showing suppression of oscillations due to sensitivity to Fermi contour geometry.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- ΔR₂ω (normalized): normalized nonlinear oscillation amplitude (unitless).
File: Figure_4f.xlsx
Description: Second-harmonic oscillations measured with current along ΓM', showing strong oscillations with opposite phase compared to ΓM.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- ΔR₂ω (normalized): normalized nonlinear oscillation amplitude (unitless).
File: Figure_4g.xlsx
Description: Calculated linear resistivity oscillations for current applied along the ΓM direction. These data are used to compare theoretical predictions with experimental linear transport oscillations.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- Δρ₁ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4h.xlsx
Description: Calculated linear resistivity oscillations for current applied along the ΓK direction, showing minimal directional variation consistent with experiment.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- Δρ₁ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4i.xlsx
Description: Calculated linear resistivity oscillations for current applied along the ΓM' direction, further demonstrating weak sensitivity of linear oscillations to Fermi contour geometry.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- Δρ2ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4j.xlsx
Description: Calculated nonlinear resistivity oscillations for current applied along the ΓM direction, showing strong oscillation amplitude predicted by theory.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- Δρ2ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4k.xlsx
Description: Calculated nonlinear resistivity oscillations for current applied along the ΓK direction, showing suppression of oscillations due to symmetry of the Fermi contour.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- Δρ2ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_4l.xlsx
Description: Calculated nonlinear resistivity oscillations for current applied along the ΓM' direction, showing reappearance of oscillations with opposite phase compared to ΓM.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- Δρ2ω (normalized): normalized first-harmonic oscillation amplitude (unitless).
File: Figure_5a.xlsx
Description: Second-harmonic oscillations measured at multiple temperatures, showing decay of oscillation amplitude with increasing temperature.
Variables:
- 1/B: inverse magnetic field (T⁻¹).
- ΔR₂ω: nonlinear oscillation amplitude (Ω).
- T: temperature (K).
File: Figure_5b.xlsx
Description: Amplitude of the first nonlinear oscillation peak plotted as a function of temperature.
Variables:
- T: temperature (K).
- ΔR₂ω nonlinear oscillation amplitude (Ω).
File: Figure_5c.xlsx
Description: Normalized amplitudes of several oscillation peaks for linear and nonlinear transport plotted versus temperature.
Variables:
- T: temperature (K).
- R₁ω_₁: normalized amplitude of the first strongest peak in the R₁ω oscillations (unitless).
- R₁ω_₂: normalized amplitude of the second strongest peak in the R₁ω oscillations (unitless).
- R₁ω_₃: normalized amplitude of the third strongest peak in the R₁ω oscillations (unitless).
- R₂ω_₁: normalized amplitude of the first strongest peak in the R₂ω oscillations (unitless).
- R₂ω_₂: normalized amplitude of the second strongest peak in the R₂ω oscillations (unitless).
- R₂ω_₃: normalized amplitude of the third strongest peak in the R₂ω oscillations (unitless).
File: Figure_5d.xlsx
Description: Comparison of the field (B) dependence of the oscillations of R1w and R2w. The points show the peak and dip amplitudes measured at different T, as indicated, all normalized to the values measured at B ~ 10.5 T.
Variables:
- B: magnetic field (T).
- R₁ω*:* normalized amplitude of the first linear oscillation peak (unitless). R₂ ω: normalized amplitude of the first nonlinear oscillation peak (unitless).
File: Figure_6.xlsx
Description: Second-harmonic oscillations measured for multiple current angles relative to the crystallographic axes, showing evolution of oscillation amplitude and phase.
Variables:
- 1/B: inverse magnetic field (T⁻¹).
- R₂ω: second-harmonic resistance (Ω).
- Angle: current direction relative to ΓM (degrees).
File Figure_7.xlsx
Description: Nonlinear oscillation measurements for α-Sn films with different thicknesses, demonstrating the robustness of oscillations across thickness and suppression for ultrathin films.
Variables
- 1/B: inverse magnetic field (T⁻¹).
- R₂ω: second-harmonic resistance (Ω).
- Thickness: film thickness (nm).