Artículo

The Effect of Nearest Neighbor [Pb O] Divacancy Pairs on the Ferroelectric-Relaxor Transition in Nano-Ordered Pb(Sc1/2 Nb1/2)O3

Burton, B. P.; Tinte, Silvia NoemiIcon ; Cockayne, E.; Waghmare, U.
Fecha de publicación: 01/2009
Editorial: Taylor & Francis Ltd
Revista: Integrated Ferroelectrics (print)
ISSN: 1058-4587
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

Molecular dynamics simulations were performed on a first-principles-based effective Hamiltonians for chemically short-range ordered Pb(Sc1/2Nb1/2) O3 with nearest neighbor [Pb O] divacancy pairs. The divacancy-concentration (X[Pb-O]) vs. temperature phase diagram was calculated, and it is topologically equivalent to the hydrostatic pressure (P) vs. temperature diagram: a ferroelectric ground-state phase at low X[Pb-O] (P); that transforms to a relaxor paraelectric phase at moderate X[Pb-O] (P); followed by a crossover to a normal paraelectric phase at high X[Pb-O](P).
Palabras clave: Relaxor Ferroelectrics , Lead Vacancies , Oxygen Vacancies , Phase Transitions
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
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URI: http://hdl.handle.net/11336/17104
DOI: http://dx.doi.org/10.1080/10584580802451439
URL: http://www.tandfonline.com/doi/abs/10.1080/10584580802451439
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Articulos de INST.DE DES.TECNOL.PARA LA IND.QUIMICA (I)
Citación
Burton, B. P.; Tinte, Silvia Noemi; Cockayne, E.; Waghmare, U.; The Effect of Nearest Neighbor [Pb O] Divacancy Pairs on the Ferroelectric-Relaxor Transition in Nano-Ordered Pb(Sc1/2 Nb1/2)O3; Taylor & Francis Ltd; Integrated Ferroelectrics (print); 101; 1; 1-2009; 37-43
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