Author/Authors :
Ja?imovi?، نويسنده , , J. and Mickovi?، نويسنده , , Z. and Ga?l، نويسنده , , R. and Smajda، نويسنده , , R. and Vâju، نويسنده , , C. and Sienkiewicz، نويسنده , , A. and Forr?، نويسنده , , L. and Magrez، نويسنده , , A.، نويسنده ,
Abstract :
Cubic ZnMnO3 powder in the form of well-crystalline nanoflakes have been synthesized at low temperatures from a nitrate precursor. The electrical properties of cubic ZnMnO3 samples have been established by DC resistivity ( ρ ) and thermo-electric power (Seebeck coefficient) measurements on a pressed pellet. The material exhibits insulator behavior with 0.7 eV acceptor ionization energy in the measured temperature range of 170–300 K. The thermo-electric power indicates a positive sign of the charge carriers. The obtained material exhibits a superparamagnetic signature with a blocking temperature of 9 K and the ZFC–FC splitting temperature of 15 K.
