Abstract
The dielectric and pyroelectric properties of Ge-doped (0.1 mol %) TlInS2 crystals are studied. The results demonstrate that TlInS2 is a ferroelectric relaxor. The experimental data are used to evaluate, using the Vogel–Fulcher relation, the activation energy (0.045 eV), preexponential factor (f 0 = 2 × 1013 Hz), and the dipole-freezing temperature (T F = 142 K) and to determine the temperature range of the stable relaxor (nanodomain) state and the temperature of the transition to the ferroelectric (macrodomain) state, accompanied by an anomaly in the temperature-dependent pyroelectric coefficient.
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Sardarly, R.M., Samedov, O.A. & Sadykhov, I.S. Relaxor Behavior of Ge-Doped TlInS2 . Inorganic Materials 40, 1018–1022 (2004). https://doi.org/10.1023/B:INMA.0000046460.60489.ea
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DOI: https://doi.org/10.1023/B:INMA.0000046460.60489.ea