Fig. 2: Fitting of the dielectric data. | Communications Materials

Fig. 2: Fitting of the dielectric data.

From: Incipient ferroelectricity in methylammonium lead halide perovskites

Fig. 2

Temperature dependences of the reciprocal permittivity measured at the frequency of 100 kHz (open symbols) and the reciprocal relaxation time according to ref. 25 (filled symbols) near the peak of permittivity in the crystals of MAPbCl3 (a), MAPbBr3 (b) and MAPbI3 (c). The lines are the least-squares fits to Eqs. (2) and (3).

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