1. Dislocation-induced large local polarization inhomogeneity of ferroelectric materials

    LN. Li, R. Zhu, X. Cheng, H.-J. Liu, Z. Zhang, Y.-L. Huang, Y.-H. Chu, L.-Q. Chen, Y. Ikuhara, P. Gao,
    Scripta Materialia, 194 113624 (2021).

  2. Photoindentation: A New Route to Understanding Dislocation Behavior in Light

    A. Nakamura, X. Fang, A. Matsubara, E. Tochigi, Y. Oshima, T. Saito, T. Yokoi, Y. Ikuhara, K. Matsunaga,
    Nano Letters, (2021) in press.

  3. Anomalously Low Heat Conduction in Single-Crystal Superlattice Ceramics Lower Than Randomly Oriented Polycrystals

    H.J. Cho, Y. Wu, Y.-Q. Zhang, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, Y.-M. Sheu, K. Saito, H. Ohta,
    Advanced Materials Interfaces, (2021) in press.

  4. Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting

    Z. Wang, Y. Luo, T. Hisatomi, J.J.M. Vequizo, S. Suzuki, S. Chen, M. Nakabayashi, L. Lin, Z. Pan, N. Kariya, A. Yamakata, N. Shibata, T. Takata, K. Teshima, K. Domen,
    Nature Communications, 12 1005 (2021).

  5. Room temperature fluoride ion conductivity in defective β-KSb1-δF4-3δ polycrystals

    K. Kawahara, R. Ishikawa, K. Nakayama, N. Shibata, Y. Ikuhara,
    Journal of Power Sources, 483 229173 (2021).

  6. Anisotropic Electrical Conductivity of Oxygen-Deficient Tungsten Oxide Films with Epitaxially Stabilized 1D Atomic Defect Tunnels

    G. Kim, B. Feng, S. Ryu, H.J. Cho, H. Jeen, Y, Ikuhara, H. Ohta,
    ACS Applied Materials and Interfaces, 13 6864 (2021).

  7. Automated geometric aberration correction for large-angle illumination STEM

    R. Ishikawa, R. Tanaka, S. Morishita, Y. Kohno, H. Sawada, T. Sasaki, M. Ichikawa, M. Hasegawa, N. Shibata, Y. Ikuhara,
    Ultramicroscopy, 222 113215 (2021).

  8. Atomistic origin of high-concentration Ce3+ in {100}-faceted Cr-substituted CeO2 nanocrystals

    X. Hao, A. Yoko, K. Inoue, Y. Xu, M. Saito, C. Chen, G. Seong, T. Tomai, S. Takami, A.L. Shluger, B. Xu, T. Adschiri, Y. Ikuhara,
    Acta Materialia, 203 116473 (2021).

  9. Direct imaging of atomistic grain boundary migration

    J. Wei, B. Feng, R. Ishikawa, T. Yokoi, K. Matsunaga, N. Shibata, Y. Ikuhara,
    Nature Materials, (2021) in press.

  10. Synthesis of Y2Ti2O5S2 by thermal sulfidation for photocatalytic water oxidation and reduction under visible light irradiation

    Z. Pan, H. Yoshida, L. Lin, Q. Xiao, M. Nakabayashi, N. Shibata, T. Takata, T. Hisatomi, K. Domen,
    Research on Chemical Intermediates, 47 225 (2021).

  11. Nanoscale Defluorination Mechanism and Solid Electrolyte Interphase of a MgF2Anode in Fluoride-Shuttle Batteries

    S. Kobayashi, H. Nakamoto, D. Yokoe, A. Kuwabara, T. Abe, Y. Ikuhara,
    ACS Applied Energy Materials, 4 996 (2021).

  12. In situ electron microscopy analysis of electrochemical Zn deposition onto an electrode

    Y. Sasaki, K. Yoshida, T. Kawasaki, A. Kuwabara, Y. Ukyo, Y. Ikuhara,
    Journal of Power Sources, 481 228831 (2021).

  13. 3D arrangement of atomic polyhedra in tilt grain boundaries

    K. Inoue, K. Kawahara, M. Saito, M. Kotani, Y. Ikuhara,
    Acta Materialia, 202 266 (2021).

  14. Toward quantitative electromagnetic field imaging by differential-phase-contrast scanning transmission electron microscopy

    T. Seki, Y. Ikuhara, N. Shibata,
    Microscopy, 70 148 (2021).

  15. Fabrication and characterization of tetragonal yttria-stabilized zirconia single-crystalline thin film

    H. Nakade, E. Tochigi, B. Feng, Y. Nezu, H. Ohta, N. Shibata, Y. Ikuhara,
    Journal of the American Ceramic Society, 104  1198 (2021).

  16. Layered cobalt oxide epitaxial films exhibiting thermoelectric: ZT = 0.11 at room temperature

    Y. Sasaki, K. Yoshida, T. Kawasaki, A. Kuwabara, Y. Ukyo, Y. Ikuhara,
    Journal of Materials Chemistry A, 9 274 (2021).

  17. Improving the depth resolution of STEM-ADF sectioning by 3D deconvolution

    A. Ishizuka, K. Ishizuka, R. Ishikawa, N. Shibata, Y. Ikuhara, H. Hashiguchi, R. Sagawa,
    Microscopy (Oxford, England), 70 241 (2021).

  18. Ultra-high contrast STEM imaging for segmented/pixelated detectors by maximizing the signal-to-noise ratio

    K. Ooe, T. Seki, Y. Ikuhara, N. Shibata,
    Ultramicroscopy, 22 113133 (2021).


  1. Atomic and electronic band structures of Ti-doped Al2O3 grain boundaries

    C. Yang, B. Feng, J. Wei, E. Tochigi, S. Ishihara, N. Shibata, Y. Ikuhara,
    Acta Materialia, 201 488 (2020) .

  2. Optimization of Two-Dimensional Channel Thickness in Nanometer-Thick SnO2-Based Top-Gated Thin-Film Transistors Using Electric Field Thermopower Modulation: Implications for Flat-Panel Displays

    D. Liang, B.-J. Chen, B. Feng, Y. Ikuhara, H.J. Cho, H. Ohta,
    ACS Applied Nano Materials, 3 12427 (2020).

  3. Single-source-precursor synthesis and high-temperature evolution of novel mesoporous SiVN(O)-based ceramic nanocomposites

    C. Zhou, A. Ott, R. Ishikawa, Y. Ikuhara, R. Riedel, E. Ionescu,
    Journal of the European Ceramic Society, 40 6280 (2020).

  4. In situ electron microscopic observation of electrochemical Li-intercalation into MoS2

    K. Yoshida, T. Kawasaki, A. Kuwabara, Y. Ukyo, Y. Ikuhara,
    Solid State Ionics, 357 (2020).

  5. Oxygen-Induced Reversible Sn-Dopant Deactivation between Indium Tin Oxide and Single-Crystalline Oxide Nanowire Leading to Interfacial Switching

    H. Zeng, T. Takahashi, T. Seki, M. Kanai, G. Zhang, T. Hosomi, K. Nagashima, N. Shibata, T. Yanagida,
    ACS Applied Materials and Interfaces, 12 52929 (2020).

  6. Band structure engineering and defect control of Ta3N5 for efficient photoelectrochemical water oxidation

    Y. Xiao, C. Feng, J. Fu, F. Wang, C. Li, V.F., Kunzelmann, C.-M. Jiang, M. Nakabayashi, N. Shibata, I.D. Sharp, K. Domen, Y. Li,
    Nature Catalysis, 3  932 (2020).

  7. Metastable oxysulfide surface formation on LiNi0.5Mn1.5O4 single crystal particles by using carbothermal reaction with Sulfur-doped hetercarbon nanoparticles: New insight for their structural and electrochemical characteristics, and their potential applications

    D. Kim, N. Zettsu, H. Shiiba, G. Sánchez-Santolino, R. Ishikawa, Y. Ikuhara, K. Teshima,
    Journal of Materials Chemistry A, 8   22302 (2020).

  8. Dislocation and oxygen-release driven delithiation in Li2MnO3

    K. Nakayama, R. Ishikawa, S. Kobayashi, N. Shibata, Y. Ikuhara,
    Nature Communications, 11 4452 (2020).

  9. Quantitative electric field mapping of a p–n junction by DPC STEM

    S. Toyama, T. Seki, S. Anada, H. Sasaki, K. Yamamoto, Y. Ikuhara, N. Shibata,
    Ultramicroscopy, 216 113033 (2020).

  10. Atomic structures of Ti-doped α-Al2O3 Σ13 grain boundary with a small amount of Si impurity

    S. Ishihara, E. Tochigi, R. Ishikawa, N. Shibata, Y. Ikuhara,
    Journal of the American Ceramic Society, 103 6659 (2020).

  11. Suppressing dynamical diffraction artefacts in differential phase contrast scanning transmission electron microscopy of long-range electromagnetic fields via precession

    T. Mawson, A. Nakamura, T.C. Petersen, N. Shibata, H. Sasaki, D.M. Paganin, M.J. Morgan, S.D. Findlay,
    Ultramicroscopy, 219113097 (2020).

  12. Nanostructural evolution of intermediate grown superconducting joint layers between GdBa2Cu3Oy coated conductors

    T. Kato, R. Yoshida, D. Yokoe, K. Ohki, T. Nagaishi, Y. Yanagisawa, T. Hirayama, Y. Ikuhara, H. Maeda,
    Superconductor Science and Technology, 33 105008 (2020).

  13. Composition gradient (1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 film with improved dielectric, piezoelectric and ferroelectric temperature stability

    R. Zhu, Z. Wang, Z. Cheng, X. Guo, T. Zhang, Z. Cai, H. Kimura, T. Matsumoto, N. Shibata, Y. Ikuhara,
    Ceramics International, 46 20284 (2020).

  14. Stabilization of a honeycomb lattice of IrO 6 octahedra by formation of ilmenite-type superlattices in MnTiO 3

    K. Miura, K. Fujiwara, K. Nakayama, R. Ishikawa, N. Shibata, A. Tsukazaki,
    Communications Materials, 1 55 (2020).

  15. Coexistence of High Electron Conduction and Low Heat Conduction in Tungsten Oxide Epitaxial Films with 1D Atomic Defect Tunnels

    G. Kim, B. Feng, Y.-M. Sheu, H. J. Cho, Y. Ikuhara, H. Ohta,
    ACS Applied Electronic Materials, 2 2507 (2020).

  16. Atomic-Scale Analysis of Biphasic Boundaries in the Lithium-Ion Battery Cathode Material LiFePO4

    S. Kobayashi, A. Kuwabara, C. A. J. Fisher, Y. Ikuhara,
    ACS Applied Energy Materials, 3 8009 (2020).

  17. Unusually Large Thermopower Change from +330 to -185 μv K-1of Brownmillerite SrCoO2.5

    Q. Yang, J. Lee, B. Feng, Y. Ikuhara, G. Kim, H. J. Cho, H. Jeen, H. Ohta
    ACS Applied Electronic Materials, 2 2250 (2020).

  18. First-principles calculations of group IIA and group IV impurities in α − A l 2 O 3

    T. Futazuka, R. Ishikawa, N. Shibata, Y. Ikuhara
    Physical Review Materials, 4 73602 (2020).

  19. Ultrafast Encapsulation of Metal Nanoclusters into MFI Zeolite in the Course of Its Crystallization: Catalytic Application for Propane Dehydrogenation

    J. Zhu, R. Osuga, R. Ishikawa, N. Shibata, Y. Ikuhara, J. N. Kondo, M. Ogura, J. Yu, T. Wakihara, Z. Liu, T. Okubo,
    Angewandte Chemie - International Edition, 59  19669 (2020).

  20. Reversible Electrochemical Insertion/Extraction of Magnesium Ion into/from Robust NASICON-Type Crystal Lattice in a Mg(BF4)2-Based Electrolyte

    G. Hasegawa, Y. Akiyama, M. Tanaka, R. Ishikawa, H. Akamatsu, Y. Ikuhara, K. Hayashi,
    ACS Applied Energy Materials, 3 6824 (2020).

  21. Synthesis of Novel Melilite-Type Iron/Cobalt Oxides and Their Oxygen Evolution Reaction Electrocatalytic Activity

    S. Ogawa, Y. Ogino, M. Yonemura, T. Fukunaga, H. Kiuchi, K. Nakayama, R. Ishikawa, Y. Ikuhara, Y. Doi, K. Suzuki, M. Saito, T. Motohashi,
    Chemistry of Materials, 32 6847 (2020).

  22. Self-activated Rh–Zr mixed oxide as a nonhazardous cocatalyst for photocatalytic hydrogen evolution

    T. Nishino, M. Saruyama, Z. Li, Y. Nagatsuma, M. Nakabayashi, N. Shibata, T. Yamada, R. Takahata, S. Yamazoe, T. Hisatomi, K. Domen, T. Teranishi,
    Chemical Science, 11 6862 (2020).

  23. Photocatalytic water splitting with a quantum efficiency of almost unity

    T. Takata, J. Jiang, Y. Sakata, M. Nakabayashi, N. Shibata, V. Nandal, K. Seki, T. Hisatomi, K, Domen,
    Nature, 581 411 (2020) .

  24. Magnetic-structure imaging in polycrystalline materials by specimen-tilt-series averaged DPC STEM

    Y. O Murakami, T. Seki, A. Kinoshita, T. Shoji, Y. Ikuhara, N. Shibata,
    Microscopy, 69  312 (2020) .

  25. Bioinspired selective synthesis of liquid-crystalline nanocomposites: Formation of calcium carbonate-based composite nanodisks and nanorods

    M. Nakayama, S. Kajiyama, A. Kumamoto, Y. Ikuhara, T. Kato,
    Nanoscale Advances, 2 2326 (2020).

  26. Discovery of Ternary Silicon Titanium Nitride with Spinel-Type Structure

    S. Bhat, A. Lale, S. Bernard, W. Zhang, R. Ishikawa, S. Haseen, P. Kroll, L. Wiehl, R. Farla, T. Katsura, Y. Ikuhara, R. Riedel,
    Scientific Reports, 10 7372 (2020).

  27. Grain boundary functions as a spin valve

    Y. Ikuhara, 
    National Science Review, 7 1148 (2020).

  28. High spatiotemporal-resolution imaging in the scanning transmission electron microscope

    R. Ishikawa, Y. Jimbo, M. Terao, M. Nishikawa, Y. Ueno, S. Morishita, M. Mukai, N. Shibata, Y. Ikuhara,
    Microscopy, 69 240 (2020).

  29. Efficient photocatalytic hydrogen evolution on single-crystalline metal selenide particles with suitable cocatalysts

    SS. Chen, JJM. Vequizo, T. Hisatomi, M. Nakabayashi, L. Lin, Z. Wang, A. Yamakata, N. Shibata, T. Takata, T. Yamada , K. Domen,
    Chemical Science, 11 6436 (2020).

  30. Three-Dimensional Imaging of a Single Dopant in a Crystal

    R. Ishikawa, N. Shibata, T. Taniguchi, Y. Ikuhara,
    Physical Review Applied, 13 34064 (2020).

  31. Thickness-dependent frictional behavior of topological insulator Bi2Se3 nanoplates

    R. Zhu, Z. Wang, Q. Yao, Q. Li, Z. Cheng, X. Guo, T. Zhang, X. Li, H. Kimura, T. Matsumoto, N. Shibata, Y. Ikuhara,
    Applied Physics A: Materials Science and Processing,  126 285 (2020).

  32. Direct Measurement of Electronic Band Structures at Oxide Grain Boundaries

    J. Wei, T. Ogawa, B. Feng, T. Yokoi, R. Ishikawa, A. Kuwabara, K. Matsunaga, N. Shibata, Y. Ikuhara,
    Nano Letters,  20 2530 (2020). in press

  33. Phase relation between supercooled liquid and amorphous silicon

    J.T. Okada, P.H.-L. Sit, R. Ishikawa, T. Ishikawa, J. Chen, K.S. Nakayama, K. Maeda, Y. Yokoyama, Y. Watanabe, P.-F. Paradis, Y. Watanabe, S. Nanao, Y. Ikuhara, K. Kimura, S. Uda,
    Applied Physics Letters, 116 93705 (2020).

  34. Efficient Water Oxidation Using Ta3N5 Thin Film Photoelectrodes Prepared on Insulating Transparent Substrates

    T. Higashi, H. Nishiyama, Y. Otsuka, Y. Kawase, Y. Sasaki, M. Nakabayashi, M. Katayama, T. Minegishi, N. Shibata, K. Takanabe, T. Yamada, K. Domen, 
    ChemSusChem, 13 1974 (2020).