Defects and charge transport in Mn-doped K0.5Na0.5NbO3 ceramics. Issue 37 (7th October 2015)

• Record Type: Journal Article
• Authors: Rafiq, Muhammad Asif; Tkach, Alexander; Costa, Maria Elisabete; Vilarinho, Paula Maria
• Is Part Of: Physical chemistry chemical physics. Volume 17:Issue 37(2015)
• Page Start: 24403
• Page End: 24411
• Publication Date: 2015-10-07
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c5cp02883c
• Languages: English
• ISSNs: 1463-9076

Abstract

<abstract abstract-type="toc"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <graphic position="anchor" id="ga" xlink:href="ark:/27927/pgj2qs4g9gq" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" />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.</p> </abstract>