Evidence for the suppression of intermediate anti-ferroelectric ordering and observation of hardening mechanism in Na1/2Bi 1/2TiO3 ceramics through cobalt substitution

Thangavelu, K and Ramadurai, Ranjit and Asthana, S (2014) Evidence for the suppression of intermediate anti-ferroelectric ordering and observation of hardening mechanism in Na1/2Bi 1/2TiO3 ceramics through cobalt substitution. AIP Advances, 4. pp. 1-9. ISSN 2158-3226

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Abstract

Co-ion (5 mol %) substitution in Na1/2Bi1/2TiO 3 (NBT) host lattice and their effects on the structural, ferroelectric and dielectric behavior has been investigated thoroughly in this present study. The substituted Co-ion at Ti-site acts an acceptor type doping and hardens (i.e., increase in coercivity) the system without any noticeable change in the remanent polarization values. However, the intermediate antiferroelectric (AFE) ordering which exists between 200 C-280 C in NBT system has been suppressed due to Co-ion substitution, which is an interesting feature for device applications.

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IITH Creators:
IITH CreatorsORCiD
Ramadurai, Ranjithttp://orcid.org/0000-0003-2991-0027
Asthana, Sakethttp://orcid.org/0000-0002-6420-3304
Item Type: Article
Uncontrolled Keywords: Anti ferroelectrics; Cobalt substitution; Device application; Dielectric behavior; Hardening mechanism; Host lattice; TiO
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 28 Nov 2014 09:37
Last Modified: 29 Aug 2017 09:49
URI: http://raiith.iith.ac.in/id/eprint/1050
Publisher URL: https://doi.org/10.1063/1.4862169
OA policy: http://www.sherpa.ac.uk/romeo/issn/2158-3226/
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