Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/86342
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dc.titleFerroelectric transitions by Ca substitution in Pb0.7 Nd0.2 TiO3
dc.contributor.authorWang, J.
dc.contributor.authorSim, C.H.
dc.contributor.authorLao, Z.
dc.contributor.authorSoon, H.P.
dc.date.accessioned2014-10-07T09:49:34Z
dc.date.available2014-10-07T09:49:34Z
dc.date.issued2008
dc.identifier.citationWang, J., Sim, C.H., Lao, Z., Soon, H.P. (2008). Ferroelectric transitions by Ca substitution in Pb0.7 Nd0.2 TiO3. Journal of Applied Physics 103 (8) : -. ScholarBank@NUS Repository.
dc.identifier.issn00218979
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/86342
dc.description.abstractFerroelectric Pb0.7 (1-y) Ca0.7y Nd0.2 TiO3 (PCNT- y) compositions with y ranging from 0 to 0.60, were synthesized via a mechanical activation route. The tetragonality (c/a) of PCNT- y at room temperature decreases from 1.0125 to 1.0000 upon substitution of Pb2+ with smaller sized Ca2+. The composition with Ca-doping y=0.60 demonstrates a unit-cell volume shrinkage of 4.063% as compared to that of Pb0.7 Nd0.2 TiO3, while the Raman spectra are of the characteristic features of PbTiO3. As the Ca content (y) increases from 0 to 0.60, there is a crossover from a displacive phase transition (y=0 and 0.10) to a diffusive one (0.20y0.40), accompanied by a decrease in transition temperature (TC or Tmax) at a linear rate of ∼8.2 K/at. %. The compositions with y
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.2909199
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.sourcetitleJournal of Applied Physics
dc.description.volume103
dc.description.issue8
dc.description.page-
dc.description.codenJAPIA
dc.identifier.isiut000255456200128
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