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Showing 1–9 of 9 results
Advanced filters: Author: Takehito Seki Clear advanced filters

  • Imaging chemical bonding states in defective graphene is important to determine its functional properties. Here, the authors report triangular and rectangular atomic electric fields in monolayer graphene induced by silicon as imaged by differential phase contrast STEM.

    • Ryo Ishikawa
    • Scott D. Findlay
    • Naoya Shibata
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-6

  • Determining the feasibility of intergrowths between zeolites is investigated using high-throughput atomistic simulations and experimental verification. Interfacial energy is an effective descriptor for identifying the feasibility of zeolite intergrowths and a zincosilicate zeolite intergrowth with three and nine rings is realized by hydrothermal syntheses.

    • Kota Oishi
    • Koki Muraoka
    • Akira Nakayama
    Research
    Nature Materials
    Volume: 24, P: 1978-1984

  • Here the authors directly observe space-charge-induced electric fields at yttria-stabilized zirconia grain boundaries, revealing how space charge layers corelate with grain boundary orientations, core atomic structures, and yttrium segregation amounts.

    • Satoko Toyama
    • Takehito Seki
    • Naoya Shibata
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • Grain boundary atomic structures of crystalline materials have long been believed to be commensurate with the crystal periodicity of the adjacent crystals. Here, the authors discover an incommensurate grain boundary structure based on direct observations and theoretical calculations.

    • Takehito Seki
    • Toshihiro Futazuka
    • Naoya Shibata
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • The authors identify BPG4, a novel regulator of chloroplast development. BPG4 directly suppresses transcriptional activity of GLK to fine-tune photosynthesis associated nuclear gene expression, and regulates chloroplast development and homeostasis.

    • Ryo Tachibana
    • Susumu Abe
    • Takeshi Nakano
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-20

  • The ability of scanning transmission electron microscopy (STEM) to image single atoms is becoming increasingly sophisticated. Here, the authors use differential phase contrast STEM to map the atomic electric fields within single Au atoms and SrTiO3crystals, a step toward visualizing such intra- and interatomic electronic structure as chemical bonds.

    • Naoya Shibata
    • Takehito Seki
    • Yuichi Ikuhara
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • Real-space visualization of the magnetic fields in antiferromagnetic haematite is achieved using atomic-resolution differential phase contrast scanning transmission electron microscopy in a magnetic-field-free environment.

    • Yuji Kohno
    • Takehito Seki
    • Naoya Shibata
    Research
    Nature
    Volume: 602, P: 234-239

  • Direct characterization of nanoscale electromagnetic fields is crucial for propelling device development. This Review summarizes recent developments and applications of high-resolution electromagnetic field imaging by scanning transmission electron microscopy, demonstrating the real-space electromagnetic field and charge observations at device interfaces.

    • Satoko Toyama
    • Takehito Seki
    • Naoya Shibata
    Reviews
    Nature Reviews Electrical Engineering
    Volume: 2, P: 27-41