Unambiguous evidence of three coexisting ferroelectric phases in a lead-free Li$_{x}$Na$_{1-x}$NbO$_{3}$ system

Abhinav Kumar Singh; Digvijay Nath Dubey; Gurvinderjit Singh; Saurabh Tripathi

doi:10.1063/5.0003111

paper

Unambiguous evidence of three coexisting ferroelectric phases in a lead-free Li $_{x}$ Na $_{1 - x}$ NbO $_{3}$ system

arXiv:2006.05991 · doi:10.1063/5.0003111

Abstract

We report here the presence of three coexisting ferroelectric phases in a lead-free lithium sodium niobate (Li $_{x}$ Na $_{1 - x}$ NbO $_{3}$ ; LNNx) system stable for $0.15 \leq x \leq 0.80$ , which contrasts the review report of Dixon and Lightfoot [Phys. Rev. B $97$ , 224105 (2018)]. More importantly, we have identified LNN20 as an important composition for technological applications due to its high dielectric permittivity, low loss, and high ferroelectric response. The anomalous dielectric and ferroelectric responses in LNN20 have been attributed to the morphotropic phase boundary like nature around this composition.

arXiv commentThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 116, 232902 (2020) and may be found at https://aip.scitation.org/doi/10.1063/5.0003111

Unambiguous evidence of three coexisting ferroelectric phases in a lead-free Lix​Na1−x​NbO3​ system

Abstract

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Unambiguous evidence of three coexisting ferroelectric phases in a lead-free Li $_{x}$ Na $_{1 - x}$ NbO $_{3}$ system