Abstract:Positive temperature coefficient resistance (PTCR) materials of Gd and Cr co-dopedBaTiO 3 ceramics were prepared by well known solid state reaction method. Temperature dependent electrical studies were performed in the temperature range from 300 K to 673 K. Curie temperature of the samples are around 345 K to 385 K. Resistivity was maximum at low temperature and decreases as the temperature increases confirming the semiconducting behavior and PTCR property of the synthesized nano-sized compounds. Thermoelectri… Show more
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