Four-point electrical conductivity with AC bridge and I-V ohmic-contact check.
Rectangular Ni3HBC pellet for electrical and thermal transport · Pellet
High-vacuum cryostat (10^-6 torr); voltage difference measured between copper thermocouple wires while applying AC current through side wires; representative I-V curve measured by four-point probe.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Room-temperature electrical conductivityMarked as a best value within this paper | sigma = (1.98 +/- 0.57) x 10^-4 S cm-1 at 298.15 K | — | +/-0.57 x 10^-4 S cm-1 | Text Exact Reported | 2059 · Transport properties · Figure 4a inset |
| Arrhenius activation energyMarked as a best value within this paper | Ea = 279 meV | — | — | Text Exact Reported | 2059 · Transport properties · Figure 4b |
| Low-temperature conductivity from Figure 4b inset | approximately 0.07 mS cm-1 at about 273 K | — | visual estimate | Figure Axis Approximate | 2060 · Figure 4 · Figure 4b inset |
| High-temperature conductivity from Figure 4b inset | approximately 0.40 mS cm-1 at about 333 K | — | visual estimate | Figure Axis Approximate | 2060 · Figure 4 · Figure 4b inset |
| Temperature dependence of electrical conductivity | conductivity increases with temperature from 273.15 to 333.15 K | — | — | Text Qualitative | 2059 · Transport properties · Figure 4b |
| I-V contact behaviour | linear I-V curve confirms ohmic contact | — | — | Text Qualitative | 2059 · Transport properties · Figure 4a inset |