Semiconductor Physics, Quantum Electronics & Optoelectronics, 27 (2), P. 189-193 (2024).
DOI: https://doi.org/10.15407/spqeo27.02.189

Frequency dispersion of dielectric coefficients of MnGaInTe4 crystals

N.N. Niftiyev1, A.O. Dachdemirov1, F.M. Mammadov1,2, M.B. Muradov3

1 Azerbaijan State Pedagogical University, Az-1000 Baku, Azerbaijan
2Institute of Catalysis and Inorganic Chemistry named after Academician M. Nagiyev, Az-1143 Baku, Azerbaijan
3Baku State University, Az-1148 Baku, Azerbaijan
*Corresponding author e-mail: niftiyevnamiq7@gmail.com



Abstract. The frequency and temperature dependences of the tangent of dielectric loss angle as well as the real and imaginary part of the dielectric constant of MnGaInTe4 crystals are investigated in the frequency range of 102 to 106 Hz. The experimental values of the studied characteristics are determined. The real and imaginary parts of the permittivity are found to undergo significant dispersion, which has a relaxation nature. The main type of dielectric losses in MnGaInTe4 crystals in the frequency range of 102 to 106 Hz are the electrical conductivity losses. The conductivity is characterized by a zone-hopping mechanism. The activation energies of charge carriers are determined.

Keywords:dielectric constant, dielectric loss, frequency, dispersion, relaxation, activation energy.

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