Defects and charge transport in Mn-doped K0.5Na0.5NbO3 ceramics
authors Rafiq, MA; Tkach, A; Costa, ME; Vilarinho, PM
nationality International
journal PHYSICAL CHEMISTRY CHEMICAL PHYSICS
keywords STRONTIUM-TITANATE CERAMICS; FREE PIEZOELECTRIC CERAMICS; DIELECTRIC-PROPERTIES; FERROELECTRIC CERAMICS; ELECTRICAL-PROPERTIES; PHASE-TRANSITIONS; MICROSCOPY; CRYSTAL; SYSTEM; STRAIN
abstract The relationship between charge transport, defects and ferroelectric response is established for K0.5Na0.5NbO3 (KNN) and Mn-doped KNN ceramics. At room temperature the conduction in KNN is associated with hole transport and can be suppressed by Mn doping. Because of that a less leaky ferroelectric hysteresis loop is obtained for Mn-doped KNN. At high temperatures the conduction is dominated by the motion of ionized oxygen vacancies, the concentration of which increases with Mn doping. This work adds relevant information on KNN and leverages its potential application.
publisher ROYAL SOC CHEMISTRY
issn 1463-9076
year published 2015
volume 17
issue 37
beginning page 24403
ending page 24411
digital object identifier (doi) 10.1039/c5cp02883c
web of science category Chemistry, Physical; Physics, Atomic, Molecular & Chemical
subject category Chemistry; Physics
unique article identifier WOS:000361543200079
  ciceco authors
  impact metrics
times cited (wos core): 16
journal impact factor (jcr 2016): 4.123
5 year journal impact factor (jcr 2016): 4.242
category normalized journal impact factor percentile (jcr 2016): 79.212
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