THE EFFECT OF ISOVALENT SUBSTITUTIONS AND DOPANTS OF 3D-METALS ON THE PROPERTIES OF FERROELECTRICS- SEMICONDUCTORS
Electrophysical properties and microstructure of PTCR ceramics of the system (Ba,Ca,Sr,Y)TiO<sub>3</sub>+y%Mn have been investigated. It has been shown that manganese ions increase the potential barrier at grain boundaries and form a high-resistance outer layer in (Ba,Ca,Sr,Y)TiO<sub&...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Institute for Condensed Matter Physics
2003-01-01
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| Series: | Condensed Matter Physics |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.5488/CMP.6.2.213 |
| Summary: | Electrophysical properties and microstructure of PTCR ceramics of the system (Ba,Ca,Sr,Y)TiO<sub>3</sub>+y%Mn have been investigated. It has been shown that manganese ions increase the potential barrier at grain boundaries and form a high-resistance outer layer in (Ba,Ca,Sr,Y)TiO<sub>3</sub> ceramics. The resistance of grains, outer layers and grain boundaries, the values of temperature coefficient of resistance as well as the varistor effect as a function of manganese content of PTCR materials have been investigated. |
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| ISSN: | 1607-324X |