Author(s): Mohamed A. Gaffar and Abd El Aziz A.F. Abd El Aziz
Article publication date: 1987-12-01
Vol. 5 No. 3 (yearly), pp. 433-453.
124
Keywords
dielectric constant, ions, electrical conductivity
Abstract
The dielectric constant and both D.C. and A.C. electrical conductivity for pure and doped single crystals of TGS are investigated in the temperature range 300-450 °K. The influence of the divalent ions; Ni2+, Cu2+, and Co2+ and the trivalent ions; Cr3+, and Fe3+ on electrical conduction, transition behavior, transition temperature and dielectric properties in ferro- and paraelectric phases is studied. The difference between the effect of the two groups is more pronounced in the D.C. conduction. The A.C. technique is here proposed to give a clearer picture in the ferroelectric phase. A preliminary trial to study the effect of the pressure on the A.C. conductance is also mentioned.