Effect of Hydrostatic Pressure on the Transport Properties of Cadmium Diarsenide Crystals
Tóm tắt
The electrical resistivity and Hall coefficient of n-type CdAs2crystals cut along [001] and [100] were measured at hydrostatic pressures in the range 0–9 GPa. The ρ(P) and R
H(P) curves for the [001] direction show three peaks at 1.8, 3, and 5.5 GPa. In the [100] direction, the curves show two peaks at 3 and 5.5 GPa. The peaks at 1.8 and 3 GPa are likely related to impurity levels. The peak at 5.5 GPa is due to the phase transition of CdAs2 . The parameters of the phase transition are determined.
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