Achievements

Papers

　　　　　　　　　　　　　　　
  1. Machine learning applications for ELNES/XANES (Invited review)
    T. Mizoguchi, S. Kiyohara
    Microscopy, in press

  2. Grain boundary Li-ion conductivity in (Li0.33La0.56)TiO3 polycrystal
    S. Sasano, R. Ishikawa, K. Kawahara, T. Kimura, Y. H. Ikuhara, N. Shibata, Y. Ikuhara
    Applied Physics Letters 116, 4 (2020)

  3. Dependence of excess vibrational entropies on grain boundary structures in MgO: A first-principles lattice dynamics
    T. Yokoi, Y. Arakawa, K. Ikawa, A. Nakamura, K. Matsunaga
    Physical Review Materials 4, 026002 (2020)

  4. Neural-network interatomic potential for grain boundary structures and their energetics in silicon
    T. Yokoi, Y. Noda, A. Nakamura, K. Matsunaga
    Physical Review Materials 4, 014605 (2020)

  5. Ceramic phases with one-dimensional long-range order
    D. Q. Yin, C. L. Chen, M. Saito, K. Inoue, Y. Ikuhara
    Nature Materials 18, 19 (2019)

  6. Insights into fundamental deformation processes from advanced in situ transmission electron microscopy
    E. Spiecker, S. H. Oh, Z. W. Shan, Y. Ikuhara, S. X. Mao
    MRS Bulletin 44, 443-449 (2019)

  7. Atomic resolution electron microscopy in a magnetic field free environment
    N. Shibata, Y. Kohno, A. Nakamura, S. Morishita, T. Seki, A. Kumamoto, H. Sawada, T. Matsumoto, S. D. Findlay, Y. Ikuhara
    Nature Communications 10, 5 (2019)

  8. Direct observation of atomic-scale fracture path within ceramic grain boundary core
    S. Kondo, A. Ishihara, E. Tochigi, N. Shibata, Y. Ikuhara
    Nature Communications 10, 6 (2019)

  9. High contrast STEM imaging for light elements by an annular segmented detector
    K. Ooe, T. Seki, Y. Ikuhara, N. Shibata
    Ultramicroscopy 202, 148-155 (2019)

  10. Atomic-resolution differential phase contrast electron microscopy
    N. Shibata
    Journal of the Ceramic Society of Japan 127, 708-714 (2019)

  11. The core structure of 60 degrees mixed basal dislocation in alumina (alpha-Al2O3) introduced by in situ TEM nanoindentation
    B. Miao, S. Kondo, E. Tochigi, J. K. Wei, B. Feng, N. Shibata, Y. Ikuhara
    Scripta Materialia 163, 157-162 (2019)

  12. Determination of the structure and properties of an edge dislocation in rutile TiO2
    E. Maras, M. Saito, K. Inoue, H. Jonsson, Y. Ikuhara, K. P. McKenna
    Acta Materialia 163, 199-207 (2019)

  13. Strong metal-metal interaction and bonding nature in metal/oxide interfaces with large mismatches
    H. P. Li, M. Saito, C. L. Chen, K. Inoue, K. Akagi, Y. Ikuhara
    Acta Materialia 179, 237-246 (2019)

  14. Carrier Depletion near the Grain Boundary of a SiC Bicrystal
    Y. W. Kim, E. Tochigi, J. Tatami, Y. H. Kim, S. H. Jang, S. Javvaji, J. Jung, K. J. Kim, Y. Ikuhara
    Scientific Reports 9, 7 (2019)

  15. Coexistence of two different atomic structures in the sigma 13 pyramidal twin boundary in alpha-Al2O3
    S. Ishihara, E. Tochigi, R. Ishikawa, N. Shibata, Y. Ikuhara
    Philosophical Magazine Letters 99, 435-443 (2019)

  16. Atomic Scale Origin of Enhanced Ionic Conductivity at Crystal Defects
    B. Feng, R. Ishikawa, A. Kumamoto, N. Shibata, Y. Ikuhara
    Nano Letters 19, 2162-2168 (2019)

  17. Stabilizing the metastable superhard material wurtzite boron nitride by three-dimensional networks of planar defects
    C. L. Chen, D. Q. Yin, T. Kato, T. Taniguchi, K. Watanabe, X. L. Ma, H. Q. Ye, Y. Ikuhara
    Proceedings of the National Academy of Sciences of the United States of America 116, 11181-11186 (2019)

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  18. Large angle illumination enabling accurate structure reconstruction from thick samples in scanning transmission electron microscopy
    H. G. Brown, R. Ishikawa, G. Sanchez-Santolino, N. Shibata, Y. Ikuhara, L. J. Allen, S. D. Findlay
    Ultramicroscopy 197, 112-121 (2019)

  19. Transition-Metal Distribution in Brownmillerite Ca2FeCoO5v K. Nakayama, R. Ishikawa, A. Kuwabara, S. Kobayashi, T. Motohashi, N. Shibata, Y. Ikuhara
    Inorganic Chemistry 58, 10209-10216 (2019)

  20. Fast Li-ion conduction at grain boundaries in (La,Li)NbO3 polycrystals
    K. Kawahara, R. Ishikawa, K. Nakayama, T. Higashi, T. Kimura, Y. H. Ikuhara, N. Shibata, Y. Ikuhara
    Journal of Power Sources 441, 7 (2019)

  21. Theoretical Calculations of Characters and Stability of Glide Dislocations in Zinc Sulfide
    M. Ukita, R. Nagahara, Y. Oshima, A. Nakamura, T. Yokoi, K. Matsunaga
    Materials Transactions 60, 99-104 (2019)

  22. Atomic-scale investigation of the heterogeneous structure and ionic distribution in an ionic liquid using scanning transmission electron microscopy
    Y. Sugimori, T. Miyata, H. Hashiguchi, E. Okunishi, T. Mizoguchi
    RSC Advances 9, 10520-10527 (2019)

  23. WVibrational Effects in X-ray Absorption Spectra of 2D Layered Materials
    W. Olovsson, T. Mizoguchi, M. Magnuson, S. Kontur, A. Togo, O. Hellman, I. Tanaka, C. Draxl
    The Journal of Physical Chemistry C 123, 9688–9692 (2019)

  24. Dislocation Structures in Low-Angle Grain Boundaries of alpha-Al2O3
    E. Tochigi, A. Nakamura, N. Shibata, Y. Ikuhara
    Crystals 8, 14 (2018)

  25. Influence of Dislocations in Transition Metal Oxides on Selected Physical and Chemical Properties
    K. Szot, C. Rodenbucher, G. Bihlmayer, W. Speier, R. Ishikawa, N. Shibata, Y. Ikuhara
    Crystals 8, 77 (2018)

  26. Probing the Internal Atomic Charge Density Distributions in Real Space
    G. Sanchez-Santolino, N. R. Lugg, T. Seki, R. Ishikawa, S. D. Findlay, Y. Kohno, Y. Kanitani, S. Tanaka, S. Tomiya, Y. Ikuhara, N. Shibata
    ACS Nano 12, 8875-8881 (2018)

  27. Structure of the Basal Edge Dislocation in ZnO
    A. Nakamura, E. Tochigi, R. Nagahara, Y. Furushima, Y. Oshima, Y. Ikuhara, T. Yokoi, K. Matsunaga
    Crystals 8, 10 (2018)

  28. Direct electric field imaging of graphene defects
    R. Ishikawa, S. D. Findlay, T. Seki, G. Sanchez-Santolino, Y. Kohno, Y. Ikuhara, N. Shibata
    Nature Communications 9, 6 (2018)

  29. Inversion domain network stabilization and spinel phase suppression in ZnO
    J. Hoemke, E. Tochigi, T. Tohei, H. Yoshida, N. Shibata, Y. Ikuhara, Y. Sakka
    Journal of the American Ceramic Society 101, 2616-2626 (2018)

  30. Atomic-Scale Valence State Distribution inside Ultrafine CeO2 Nanocubes and Its Size Dependence
    X. D. Hao, A. Yoko, C. L. Chen, K. Inoue, M. Saito, G. Seong, S. Takami, T. Adschiri, Y. Ikuhara
    Small 14, 8 (2018)

  31. Direct Imaging for Single Molecular Chain of Surfactant on CeO2 Nanocrystals
    X. D. Hao, C. L. Chen, M. Saito, D. Q. Yin, K. Inoue, S. Takami, T. Adschiri, Y. Ikuhara
    Small 14, 7 (2018)

  32. Atomic-Scale Measurement of Flexoelectric Polarization at SrTiO3 Dislocations
    P. Gao, S. Z. Yang, R. Ishikawa, N. Li, B. Feng, A. Kumamoto, N. Shibata, P. Yu, Y. Ikuhara
    Physical Review Letters 120, 6 (2018)

  33. Picometer-scale atom position analysis in annular bright-field STEM imaging
    P. Gao, A. Kumamoto, R. Ishikawa, N. Lugg, N. Shibata, Y. Ikuhara
    Ultramicroscopy 184, 177-187 (2018)

  34. On the quantitativeness of grain boundary chemistry using STEM EDS: A ZrO2 ∑9 model grain boundary case study
    B. Feng, N. R. Lugg, A. Kumamoto, N. Shibata, Y. Ikuhara
    Ultramicroscopy 193, 33-38 (2018)

  35. Direct Determination of Atomic Structure and Magnetic Coupling of Magnetite Twin Boundaries
    C. L. Chen, H. P. Li, T. Seki, D. L. Yin, G. Sanchez-Santolino, K. Inoue, N. Shibata, Y. Ikuhara
    ACS Nano 12, 2662-2668 (2018)

  36. Theoretical framework of statistical noise in scanning transmission electron microscopy
    T. Seki, Y. Ikuhara, N. Shibata
    Ultramicroscopy 193, 118-125 (2018)

  37. Stable Magnetic Skyrmion States at Room Temperature Confined to Corrals of Artificial Surface Pits Fabricated by a Focused Electron Beam
    T. Matsumoto, Y. G. So, Y. Kohno, Y. Ikuhara, N. Shibata
    Nano Letters 18, 754-762 (2018)

  38. Unique fitting of electrochemical impedance spectra by random walk Metropolis Hastings algorithm
    K. Kawahara, R. Ishikawa, T. Higashi, T. Kimura, Y. H. Ikuhara, N. Shibata, Y. Ikuhara
    Journal of Power Sources 403, 184-191 (2018)

  39. Atomic-scale structure relaxation, chemistry and charge distribution of dislocation cores in SrTiO3
    P. Gao, R. Ishikawa, B. Feng, A. Kumamoto, N. Shibata, Y. Ikuhara
    Ultramicroscopy 184, 217-224 (2018)

  40. Oxide-Ion Conduction via Interstitials in Scheelite-Type LaNbO4: A First-Principles Study
    K. Toyoura, Y. Sakakibara, T. Yokoi, A. Nakamura, K. Matsunaga
    The Journal of Materials Chemistry A 25, 12004-12011 (2018)

  41. Interaction of sodium atoms with stacking faults in silicon with different Fermi levels
    Y. Ohno, H. Morito, K. Kutsukake, I. Yonenaga, T. Yokoi, A. Nakamura, K. Matsunaga
    Applied Physics Express 11, 061303 (2018)

  42. Electronic and Atomic Structures of Edge and Screw Dislocations in Rock Salt Structured Ionic Crystals
    M. Ukita, A. Nakamura, T. Yokoi, K. Matsunaga
    Philosophical Magazine 98, 2189-2204 (2018)

  43. Extraordinary plasticity of an inorganic semiconductor in darkness
    Y. Oshima, A. Nakamura, K. Matsunaga
    Science 360, 772-774 (2018)

  44. <10-10> Dislocation at a {2-1-10} low-angle grain boundary in LiNbO3
    Y. Furushima, A. Nakamura, E. Tochigi, Y. Ikuhara, K. Toyoura, K. Matsunaga
    Journal of Materials Science 53, 333–344 (2018)

  45. Lattice expansion and local lattice distortion in Nb- and La-doped SrTiO3 single crystals investigated by x-ray diffraction and first-principles calculations
    S. Kobayashi, Y. Ikuhara, T. Mizoguchi
    Physical Review B 98, 134114-1-13 (2018)

  46. Data-driven approach for the prediction and interpretation of core-electron loss spectroscopy
    K. Kiyohara, T. Miyata, K. Tsuda, T. Mizoguchi
    Scientific Reports 8, 13548-1-12 (2018)

  47. Identifying lithium K edge anisotropy in LiCoO2
    J. Kikkawa, T. Mizoguchi, T. Nagai, K. Kimoto
    Physical Review B 98, 075103-1-6 (2018)

  48. Identification of nanometer-scale compositional fluctuations in silicate glass using electron microscopy and spectroscopy
    K. Nakazawa, T. Miyata, S. Amma, T. Mizoguchi
    Scripta Materialia 154, 197-201 (2018)

  49. High-resolution mapping of molecules in an ionic liquid via scanning transmission electron microscopy
    T. Miyata, T. Mizoguchi
    Microscopy 67, i162–i167 (2018)

  50. Attainment of 40.5 pm spatial resolution using 300 kV scanning transmission electron microscope equipped with fifth-order aberration corrector
    S. Morishita, R. Ishikawa, Y. Kohno, H. Sawada, N. Shibata, Y. Ikuhara
    Microscopy 67, 46-50 (2018)

  51. Dissociation reaction of the 1/3<-1101> edge dislocation in alpha-Al2O3
    Eita Tochigi, Teruyasu Mizoguchi, Eiji Okunishi, Atsutomo Nakamura, Naoya Shibata, Yuichi Ikuhara
    Journal of Materials Science, 53, 8049-8058 (2018)

  52. Dislocation Structures in Low-Angle Grain Boundaries of α-Al2O3
    Eita Tochigi, Nakamura Atsutomo, Shibata Naoya, Yuichi Ikuhara
    Crystals, 8, 1-14 (2018), doi:10.3390/cryst8030133

  53. Attainment of 40.5 pm spatial resolution using 300 kV scanning transmission electron microscope equipped with fifth-order aberration corrector
    S Morishita, R Ishikawa, Y Kohno, H Sawada, N Shibata, Y Ikuhara
    Microscopy, doi: 10.1093/jmicro/dfx122 (2017)

  54. Real-space analysis of diffusion behavior and activation energy of individual monatomic ions in a liquid
    T Miyata, F Uesugi, T Mizoguchi
    Science advances 3 (12), e1701546 (2017)

  55. Estimation of the molecular vibration of gases using electron microscopy
    H Katsukura, T Miyata, M Shirai, H Matsumoto, T Mizoguchi
    Scientific reports 7 (1), 16434 (2017)

  56. High-resolution mapping of molecules in an ionic liquid via scanning transmission electron microscopy
    T Miyata, T Mizoguchi
    Microscopy, 1-6 (2017)

  57. Atomic-Scale Origin of the Quasi-One-Dimensional Metallic Conductivity in Strontium Niobates with Perovskite-Related Layered Structures
    C Chen, D Yin, K Inoue, F Lichtenberg, X Ma, Y Ikuhara, JG Bednorz
    ACS nano DOI: 10.1021/acsnano.7b06619 (2017)

  58. Transfer Learning to Accelerate Interface Structure Searches
    H Oda, S Kiyohara, K Tsuda, T Mizoguchi
    Journal of the Physical Society of Japan 86 (12), 123601 (2017)

  59. Direct Observation of Oxygen Vacancy Distribution across Yttria-Stabilized Zirconia Grain Boundaries
    B Feng, NR Lugg, A Kumamoto, Y Ikuhara, N Shibata
    ACS nano 11 (11), 11376-11382 (2017)

  60. Basics and applications of ELNES calculations
    H Ikeno, T Mizoguchi
    Microscopy 66 (5), 305-327

  61. <10-10> Dislocation at a {2-1-10} low-angle grain boundary in LiNbO3
    Y Furushima, A Nakamura, E Tochigi, Y Ikuhara, K Toyoura, K Matsunaga
    Journal of Materials Science 53 (1), 333-344 (2018)

  62. Room-temperature dilute ferromagnetic dislocations in S r 1− x M n x Ti O 3− δ
    R Ishikawa, Y Shimbo, I Sugiyama, NR Lugg, N Shibata, Y Ikuhara
    Physical Review B 96 (2), 024440 (2017)

  63. Nonstoichiometric [012] dislocation in strontium titanate
    Y Furushima, Y Arakawa, A Nakamura, E Tochigi, K Matsunaga
    Acta Materialia 135, 103-111 (2017)

  64. Another origin of yield drop behavior in sapphire deformed via basal slip: Recombination of climb-dissociated partial dislocations
    A Nakamura, K Matsunaga, E Tochigi, N Shibata, Y Ikuhara, KPD Lagerlöf
    Scripta Materialia 138, 109-113 (2017)

　　　　　　　　　　　　　　
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