Defects and charge transport in Mn-doped K0.5Na0.5NbO3 ceramics
Author:
Affiliation:
1. Department of Materials and Ceramic Engineering
2. CICECO – Aveiro Institute of Materials
3. University of Aveiro
4. 3810-193 Aveiro
5. Portugal
Abstract
KNN room-temperature conduction is associated with hole transport and can be suppressed by Mn-doping; a less leaky hysteresis loop is obtained. At high temperatures conduction is dominated by ionized oxygen vacancies motion. From grains and grain-boundaries resistance oxygen vacancies in KNN and Mn-doped KNN ceramics are mainly located at grain-boundaries.
Publisher
Royal Society of Chemistry (RSC)
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy
Link
http://pubs.rsc.org/en/content/articlepdf/2015/CP/C5CP02883C
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