Abstract
A first-principles-derived approach is used to study the properties of rocksalt-ordered and disordered Pb(Sc0.5Nb0.5)O3 (PSN) alloys. The paraelectric-to-ferroelectric transition temperature Tc is strongly dependent on the atomic configuration, while the piezoelectric response versus T/Tc is nearly independent of the chemical order. Our calculations are consistent with the experimental finding of Chu et al. [J. Appl. Phys. 77, 1671 (1995)] that, at T=Tc, ordered PSN undergoes a normal ferroelectric transition, while disordered PSN transforms from a relaxor state to a ferroelectric state.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 9:59 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 3, 2024, 2:15 p.m.) |
Indexed | 1 year, 6 months ago (Feb. 3, 2024, 6:27 p.m.) |
Issued | 24 years, 8 months ago (Nov. 27, 2000) |
Published | 24 years, 8 months ago (Nov. 27, 2000) |
Published Print | 24 years, 8 months ago (Nov. 27, 2000) |
@article{Hemphill_2000, title={Finite-temperature properties of disordered and ordered Pb(Sc0.5Nb0.5)O3 alloys}, volume={77}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1328765}, DOI={10.1063/1.1328765}, number={22}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Hemphill, R. and Bellaiche, L. and Garcı́a, Alberto and Vanderbilt, David}, year={2000}, month=nov, pages={3642–3644} }