Effects of Mn-doping on TSDC and degradation of BaTiO3 |
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| Authors: | Jaill Jeong Young Ho Han |
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| Affiliation: | (1) Department of Materials Engineering, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu, Suwon, 440-746, Korea |
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| Abstract: | The effects of Mn-doping on TSDC (Thermally Stimulated Depolarization Current) and electrical degradation of BaTiO3 have been investigated. TSDCs of un-doped BaTiO3 and Ba(Ti1−x
Mnx)O3−δ exhibited the three sharp TSDC peaks around phase transition temperatures. TSDC of Ba(Ti0.995Mg0.005)O2.995 increased gradually from 50∘C and this anomalous depolarization current kept going up well above the Curie temperature (∼130∘C). TSDCs of un-doped BaTiO3 and Ba(Ti0.995Mn0.005)O3−δ decreased in the temperature range above the Curie point, whereas a slight increase in TSDC was confirmed at the specimen
of Ba(Ti0.99Mn0.01)O3−δ. TSDCs of Ba(Ti0.995−y
Mg0.005Mny)O3−δ (y = 0.005, 0.01) were lower than that of Ba(Ti0.995Mg0.005)O2.995. |
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| Keywords: | Mn BaTiO3 Mg Electrical degradation TSDC |
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