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The Polar Nano Regions Relaxor Transition in Pb(Sub 10x) (Sc(sub 1/2) O(sub 30x); X - buolk concentration of nearest neighbor [Pb - O] divacancies

Published

Author(s)

Benjamin P. Burton, Daniel B. Gopman, Gunay Dogan, Eric J. Cockayne

Abstract

In previous work, molecular dynamics simulations based on a rst-principles-derived eective Hamiltonian for Pb1XpSc1 {2qO3X (PSN), with nearest-neighbor Pb-O divacancy pairs, was used to calculate X_[Pb-O] vs. T, phase diagrams for PSN with: Ideal rock-salt type chemical order; nanoscale chemical short-range order; and random chemical disorder. Here, we show that the phase diagrams should include additional regions in which a glassy relaxor-phase (or state) is predicted. With respect to phase diagram topology, these results strongly support the analogy between relaxors and magnetic spin-glass-systems.
Citation
Physical Review B

Keywords

relaxor ferroelectric, spin glass, phase diagram, polar nano regions

Citation

Burton, B. , Gopman, D. , Dogan, G. and Cockayne, E. (2019), The Polar Nano Regions Relaxor Transition in Pb(Sub 10x) (Sc(sub 1/2) O(sub 30x); X - buolk concentration of nearest neighbor [Pb - O] divacancies, Physical Review B, [online], https://doi.org/10.1080/00150193.2018.1474636 (Accessed October 16, 2021)
Created March 11, 2019, Updated April 15, 2020