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Showing 1–7 of 7 results
Advanced filters: Author: Haozhi Sha Clear advanced filters

  • The authors find polar vortex arrays in twisted paraelectric SrTiO3. By employing multislice electron ptychography, the atomic structures of different layers are effectively resolved, allowing for the identification of depth-dependent rotation reversal of the in-plane polarization.

    • Haozhi Sha
    • Yixuan Zhang
    • Rong Yu
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • The authors demonstrate a chemopiezoelectric effect in which the displacive migration of oxygen vacancies driven by an electric field induces a large strain in the surface layer of thin (K,Na)NbO3 ceramics. They achieve an electrostrain of 1.9% under a field of −3 kV mm−1, with thermal stability up to 200 °C.

    • Ze Xu
    • Xiaoming Shi
    • Ke Wang
    Research
    Nature Materials
    Volume: 24, P: 565-573

  • Ptychography is a coherent diffractive imaging method that enables atomic resolution in four-dimensional scanning transmission electron microscopy. Taking advantage of the nature of the investigated object, and therefore using atomic-orbital-like functions for the reconstruction of the object, the resolution can be further improved to an information limit of 14 pm.

    • Wenfeng Yang
    • Haozhi Sha
    • Rong Yu
    Research
    Nature Nanotechnology
    Volume: 19, P: 612-617

  • The authors report coexisting ferromagnetism, polar distortion and metallicity in quasi-two-dimensional Ca3Co3O8, providing a platform to exploit magnetoelectric coupling in a metallic system.

    • Jianbing Zhang
    • Shengchun Shen
    • Pu Yu
    Research
    Nature Materials
    Volume: 23, P: 912-919