Structural relaxation of ferroelectric phase in hard sodium lithium niobate solid solutions studied by solid-state NMR.

ABSTRACT: Hard sodium lithium niobate (LNN) solid solutions offer a promising environmentally benign alternative to lead-based ferroelectric materials for electronic devices. A major challenge in their practical application is that their ferroelectric phase relaxes over a timescale ranging from weeks to years to an orthorhombic phase, limiting their long-term performance. In order to understand the structural changes in the relaxation process, high mechanical quality factor LixNa1-xNbO3 solid-solutions were deliberately stored under ambient conditions for 24 months, without any specialized hermetic protection, to assess their stability over time. We utilized 1D and 2D 23Na solid-state Nuclear Magnetic Resonance (ssNMR) to investigate short-range structural changes in the 24-months-old aged and unage

SUBMITTER: Logrado M 

PROVIDER: S-EPMC12370897 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature