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Conductivity measurements of deuterated ammonium dihydrogen phosphate(DADP) crystals with different deuterated degrees are described.The conductivities increase with the deuterium content,and the value of the a-direction is larger than that of the c-direction.Compared with DKDP crystals,DADP crystals have larger conductivities,which is partly due to the existence of A defects.The ac conductivity over the temperature range 25-170℃ has shown a knee in the curve of ln(σT) versus T~(_1).The conductivity activation energy calculated by the slope of the high temperature region decreases with the deuterium content.The previously reported phase transition is not seen.
Conductivity measurements of deuterated ammonium dihydrogen phosphate (DADP) crystals with different deuterated degrees are described. Conductivities increase with the deuterium content, and the value of the a-direction is larger than that of the c-direction. Compared with DKDP crystals, DADP The conductivity of the conductivity of the A range of 25-170 ℃ has shown a knee in the curve of ln (σT) versus T ~ (_1). calculated by the slope of the high temperature region decreases with the deuterium content. previously previously reported phase transition is not seen.