Abstract

Single crystals of Pb3Ni1.5Mn5.5O15 were successfully grown by the high temperature solution growth method. Their composition was determined by energy dispersive X-ray analysis. The phase homogeneity of the grown crystals was examined and confirmed by powder X-ray phase analysis. The structure was characterized by X-ray single crystal diffractometry and was indexed in the trigonal space group P-3c1 (No. 165) with lattice parameters a = 9.9142(2) Å and c = 13.4923(18) Å. The dielectric properties of Pb3Ni1.4Mn5.6O15 were investigated in the temperature range 150 – 500 K. The AC -measurements were carried out for 3 different frequencies: 10 kHz, 100 kHz and 1 MHz. From the DC measurements thermal activation energy was estimated.

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