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Showing 1–3 of 3 results
Advanced filters: Author: Kinnary Patel Clear advanced filters

  • The authors demonstrate strain-induced morphotropic phase boundary-like nanodomains in lead-free NaNbO3 thin films, enabling multi-state switching and large enhancements in dielectric susceptibility and tunability over a broad frequency range.

    • Reza Ghanbari
    • Harikrishnan KP
    • Ruijuan Xu
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-11

  • Limited by challenges in light-atom imaging, microscopic investigations of ferroelectricity have used cation–cation displacements as a proxy for the true cation–anion distortions. Using electron ptychography, oxygen anions can be tracked to observe an otherwise-hidden ferroelectric mechanism in thin-film NaNbO3, which would have appeared antiferroelectric from cations alone.

    • Harikrishnan KP
    • Ruijuan Xu
    • David A. Muller
    Research
    Nature Materials
    Volume: 24, P: 1433-1440