INTERNATIONAL JOURNAL OF MODERN PHYSICS B, vol.37, no.28, 2023 (SCI-Expanded)
The single crystals of TlGaTe2 were grown by the Bridgman method. The current-voltage characteristics were performed for obtained crystals and it was determined that the Poole-Frenkel effect occurs in the nonlinear region of the current in the directions parallel and perpendicular to the crystallographic axis. The calculated values of the concentration of ionized centers N-t, the mean free path lambda, the values of the Frenkel coefficient beta and the shape of the potential well in TlGaTe2 crystals are determined.