Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12134
Title: Large electrocaloric strength in the (100)-oriented relaxor ferroelectric Pb[(Ni1/3Nb2/3)0.6Ti0.4]O3 single crystal at near morphotropic phase boundary
Authors: Peng, B
Zhang, Q
Ke, S
Li, T
Niu, H
Zeng, X
Fan, H
Huang, H 
Keywords: Electrocaloric strength
MPB
PNNT single crystal
Relaxor ferroelectric
Issue Date: 2015
Publisher: Pergamon Press
Source: Ceramics international, 2015, v. 41, no. 8, p. 9344-9349 How to cite?
Journal: Ceramics international 
Abstract: Relaxor ferroelectric Pb[(Ni1/3Nb2/3)0.6Ti0.4]O3 (PNNT) single crystal with composition close to the morphotropic phase boundary (MPB) was successfully prepared using the molten salt method. The analysis results of XRD and TEM indicated that the as-grown crystal is of almost pure perovskite phase with coexistence of tetragonal and rhombohedral. Typical relaxor behavior was observed when the crystal was aged. Large electrocaloric strength (ΔT/ΔE) of 44.97 mK cm/kV was obtained near the phase transition temperature of paraelectric to ferroelectric, indicating that PNNT is a promising material for application in cooling system. Moreover, it is found that the aging of point defects may make an important contribution to the electrocaloric performance of the single crystal, in addition to the contribution of the transition of phases induced by the electric field.
URI: http://hdl.handle.net/10397/12134
ISSN: 0272-8842
EISSN: 1873-3956
DOI: 10.1016/j.ceramint.2015.03.285
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