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Pressure and temperature dependences in p-ZnAs2 at high pressures

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Abstract

Kinetic effects in p-ZnAs2 were measured at hydrostatic (P ≤ 9 GPa) and quasi-hydrostatic (to P ≤ 50 GPa) pressures on pressure buildup and depressurization. A conclusion on the occurrence of two phase transitions was made: I–II at P = 9–15 GPa and II-III at P = 30–35 GPa. Based on the temperature dependences of electrical resistance, it was shown that the conductivity is determined by activation mechanisms in a temperature range of 250–400 K; in this case, the activation energy changed with temperature and pressure. The pressure dependences of the activation energy and the coefficient R 0, which characterizes the mobility, concentration, and effective mass of carriers, were calculated.

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Author information

Correspondence to A. Yu. Mollaev.

Additional information

Original Russian Text © A.Yu. Mollaev, S.F. Marenkin, A.G. Alibekov, R.K. Arslanov, A.N. Babushkin, L.A. Saipulaeva, A.V. Teben’kov, 2013, published in Zhurnal Neorganicheskoi Khimii, 2013, Vol. 58, No. 3, pp. 402–405.

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Mollaev, A.Y., Marenkin, S.F., Alibekov, A.G. et al. Pressure and temperature dependences in p-ZnAs2 at high pressures. Russ. J. Inorg. Chem. 58, 350–353 (2013). https://doi.org/10.1134/S0036023613020198

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Keywords

  • Pressure Dependence
  • Hall Coefficient
  • High Pressure Chamber
  • Electrophysical Characteristic
  • High Pressure Apparatus