Synthesis, electrical resistivity, thermo-electric power and magnetization of cubic ZnMnO3 |
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| Authors: | J Ja?imovi? R Gaál C Vâju L Forró |
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| Institution: | a Laboratory of Complex Matter Physics (LPMC), Ecole Polytechnique Fédérale de Lausanne, CH-1015 Ecublens, Switzerlandb Center for Research on Electronically Advanced Materials (CREAM), Ecole Polytechnique Fédérale de Lausanne, CH-1015 Ecublens, Switzerland |
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| 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. |
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| Keywords: | A Semiconductors E DC resistivity E Thermo-electric power |
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