Title :
Anomalies of dielectric properties in a lithium-titanium ferrite ceramic
Author :
Malyshev, Andrey
Author_Institution :
National Research Tomsk Polytechnic University, Tomsk Russia
Abstract :
For the first time a dielectric hysteresis is observed in a polycrystalline lithium-titanium ferrite in the temperature range 475-575 K. A thermal Barkhausen effect is detected during heating and cooling of ferrite specimens prepolarized in an electric field. The results provide evidence on the formation of properties similar to ferroelectricones in lithium-titanium ferrites under certain conditions.
Keywords :
Barkhausen effect; cooling; dielectric hysteresis; dielectric polarisation; ferrites; ferroelectric ceramics; heat treatment; iron compounds; lithium compounds; titanium compounds; zinc compounds; Li0.649Fe1.598Ti0.5Zn0.2Mn0.051O4; cooling; dielectric hysteresis; dielectric properties; electric field; ferroelectricones; heating; polycrystalline lithium-titanium ferrite ceramic; prepolarization; temperature 475 K to 575 K; thermal Barkhausen effect; Ceramics; Dielectrics; Electric fields; Ferrites; Temperature; Temperature dependence; Temperature measurement; Barkhausen pulse; Ferrite; relaxation polarization;
Conference_Titel :
Strategic Technology (IFOST), 2012 7th International Forum on
Conference_Location :
Tomsk
Print_ISBN :
978-1-4673-1772-6
DOI :
10.1109/IFOST.2012.6357523
