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

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Electric-field-temperature phase diagram of the ferroelectric relaxor system (1-x)Bi1/2Na1/2TiO3-xBaTiO3 doped with manganese

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Title
Electric-field-temperature phase diagram of the ferroelectric relaxor system (1-x)Bi1/2Na1/2TiO3-xBaTiO3 doped with manganese
Author
Sapper, EvaNovak, NikolaJo, WookGranzow, TorstenRodel, Jurgen
Issue Date
2014-05
Publisher
AMER INST PHYSICS
Citation
JOURNAL OF APPLIED PHYSICS, v.115, no.19, pp.194104
Abstract
The electric-field-temperature phase diagram for the lead-free relaxor material (1 - x)(Bi1/2Na1/2)TiO3 - xBaTiO 3 (x = 0.03, 0.06, and 0.09) doped with 0.5 mol% Mn (BNT-100xBT:Mn) was established. Transition lines between ergodic or nonergodic relaxor states and the field-induced ferroelectric state were determined at constant temperatures with electric-field-dependent measurements of the polarization as well as of the piezoelectric coefficient and permittivity. Near the depolarization temperature Td, the switching between two ferroelectric poling directions occurs in two steps via an intermediate relaxor state. This effect is closely related to the pinching of the ferroelectric hysteresis loop.
URI
https://scholarworks.unist.ac.kr/handle/201301/4965
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84901440272
DOI
10.1063/1.4876746
ISSN
0021-8979
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