BROWSE

Related Researcher

Author's Photo

Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics

ITEM VIEW & DOWNLOAD

Coexistence of ergodicity and nonergodicity in LaFeO3-modified Bi-1/2(Na0.78K0.22)(1/2)TiO3 relaxors

Cited 11 times inthomson ciCited 6 times inthomson ci
Title
Coexistence of ergodicity and nonergodicity in LaFeO3-modified Bi-1/2(Na0.78K0.22)(1/2)TiO3 relaxors
Author
Han, Hyoung-SuJo, WookRoedel, JuergenHong, In-KiTai, Weon-PilLee, Jae-Shin
Keywords
Chemical modifiers; Electrical cycling; Ergodicity; Ergodics; Ferroelectric order; Functional properties; Nonergodicity; Relaxor materials; Relaxors; Strain hysteresis loops; Time-dependent changes; TiO
Issue Date
2012-09
Publisher
IOP PUBLISHING LTD
Citation
JOURNAL OF PHYSICS-CONDENSED MATTER, v.24, no.36, pp. -
Abstract
The effect of LaFeO3 addition to Bi-1/2(Na0.78K0.22)(1/2)TiO3 ceramics on the phase stability and macroscopic functional properties was investigated. Similarly to other chemical modifiers known in the literature, LaFeO3 addition suppresses an electric-field-induced long-range ferroelectric order, giving rise to a giant unipolar strain of similar to 0.3% at 2 mol% LaFeO3 addition. Time-dependent changes in polarization and strain hysteresis loops both during successive electrical cycling and after removal of the electric field suggest that a specimen with 2 mol% LaFeO3 consists of both ergodic and nonergodic phases, which is unique among the known relaxor materials.
URI
Go to Link
DOI
10.1088/0953-8984/24/36/365901
ISSN
0953-8984
Appears in Collections:
MSE_Journal Papers
Files in This Item:
2-s2.0-84865429631.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU