The University of Tokyo School of Engineering Institute of Engineering Innovation
Papers in 2020
- S. Bhat, A. Lale, S. Bernard, W. Zhang, R. Ishikawa, S. Haseen, P. Kroll, L. Wiehl, R. Farla, T. Katsura, Y. Ikuhara, and R. Riedel, "Discovery of Ternary Silicon Titanium Nitride with Spinel-Type Structure,"
Scientific Reports, 10, 7372(2020).
- T. Futazuka, R. Ishikawa, N. Shibata, and Y. Ikuhara, "First-principles calculations of group IIA and group IV impurities in alpha-Al2O3,"
Physical Review Materials, 4, 073602(2020).
- G. Hasegawa, Y. Akiyama, M. Tanaka, R. Ishikawa, H. Akamatsu, Y. Ikuhara, and K. Hayashi, "Reversible Electrochemical Insertion/Extraction of Magnesium Ion into/from Robust NASICON-Type Crystal Lattice in a Mg(BF4)(2)-Based Electrolyte,"
ACS Applied Energy Materials, 3 6824-33 (2020).
- Y. Ikuhara, "Grain boundary functions as a spin valve",
National Science Review, 7, 1148-49 (2020).
- S. Ishihara, E. Tochigi, R. Ishikawa, N. Shibata, Y. Ikuhara, "Atomic structures of Ti‐doped α‐Al2O3 Σ13 grain boundary with a small amount of Si impurity,"
Jounal of American Ceramic Society, 103, 6659–6665(2020).
- R. Ishikawa, Y. Jimbo, M. Terao, M. Nishikawa, Y. Ueno, S. Morishita, M. Mukai, N. Shibata, and Y. Ikuhara, "High spatiotemporal-resolution imaging in the scanning transmission electron microscope",
Microscopy, 69 240-47 (2020).
- R. Ishikawa, N. Shibata, T. Taniguchi, and Y. Ikuhara, "Three-Dimensional Imaging of a Single Dopant in a Crystal,"
Physical Review Applied, 13, 034064(2020).
- T. Kato, R. Yoshida, D. Yokoe, K. Ohki, T. Nagaishi, Y. Yanagisawa, T. Hirayama, Y. Ikuhara, and H. Maeda, "Nanostructural evolution of intermediate grown superconducting joint layers between GdBa(2)Cu(3)O(y)coated conductors",
Superconductor Science & Technology, 33, 105008(2020).
- D. W. Kim, N. Zettsu, H. Shiiba, G. Sanchez-Santolino, R. Ishikawa, Y. Ikuhara, and K. Teshima, "Metastable oxysulfide surface formation on LiNi0.5Mn1.5O4 single crystal particles by carbothermal reaction with sulfur-doped heterocarbon nanoparticles: new insight into their structural and electrochemical characteristics, and their potential applications",
Journal of Materials Chemistry A, 8 22302-14 (2020).
- G. Kim, B. Feng, Y. M. Sheu, H. J. Cho, Y. Ikuhara, and H. Ohta, "Coexistence of High Electron Conduction and Low Heat Conduction in Tungsten Oxide Epitaxial Films with 1D Atomic Defect Tunnels",
ACS Applied Electronic Materials, 2 2507-13 (2020).
- S. Kobayashi, A. Kuwabara, C. A. J. Fisher, and Y. Ikuhara, "Atomic-Scale Analysis of Biphasic Boundaries in the Lithium-Ion Battery Cathode Material LiFePO4",
Applied Energy Materials, 3 8009-16 (2020).
- DD. Liang, BJ. Chen, B. Feng, Y. Ikuhara, HJ. Cho, H. Ohta, “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,”
ACS Applied Nano Materials, 3, 12427-12432(2020).
- T. Makita, S. Kumagai, A. Kumamoto, M. Mitani, J. Tsurumi, R. Hakamatani, M. Sasaki, T. Okamoto, Y. Ikuhara, S. Watanabe, J. Takeya, “High-performance, semiconducting membrane composed of ultrathin, single-crystal organic semiconductors,”
Proceedings of the Nationl Academy of Sciences of the United States of America, 117, 80-85(2020).
- Y. O. Murakami, T. Seki, A. Kinoshita, T. Shoji, Y. Ikuhara, N. Shibata, "Magnetic-structure imaging in polycrystalline materials by specimen-tilt series averaged DPC STEM,"
Microscopy, 69, 312-320(2020).
- H. Nakade, E. Tochigi, B. Feng, Y. Nezu, H. Ohta, N. Shibata, Y. Ikuhara, “Fabrication and characterization of tetragonal yttria-stabilized zirconia single-crystalline thin film,"
Journal of the American Ceramic Society, 104, 1198-1203(2020).
- K. Nakayama, R. Ishikawa, S. Kobayashi, N. Shibata, Y. Ikuhara, "Dislocation and oxygen-release driven delithiation in Li2MnO3,"
Nature Communications, 11, 4452(2020).
- M. Nakayama, S. Kajiyama, A. Kumamoto, Y. Ikuhara, and T. Kato, "Bioinspired selective synthesis of liquid-crystalline nanocomposites: formation of calcium carbonate-based composite nanodisks and nanorods,"
Nanoscale Advances, 2 2326-32 (2020).
- S. Ogawa, Y. Ogino, M. Yonemura, T. Fukunaga, H. Kiuchi, K. Nakayama, R. Ishikawa, Y. Ikuhara, Y. Doi, K. Suzuki, M. Saito, and T. Motohashi, "Synthesis of Novel Melilite-Type Iron/Cobalt Oxides and Their Oxygen Evolution Reaction Electrocatalytic Activity",
Chemistry of Materials, 32, 6847-54(2020).
- J. T. Okada, P. H. L. Sit, R. Ishikawa, T. Ishikawa, J. F. Chen, K. S. Nakayama, K. Maeda, Y. Yokoyama, Y. Watanabe, P. F. Paradis, S. Nanao, Y. Ikuhara, K. Kimura, and S. Uda, "Phase relation between supercooled liquid and amorphous silicon,"
Applied Physics Letters, 116, 093705(2020).
- S. Sasano, R. Ishikawa, K. Kawahara, T. Kimura, Y. H. Ikuhara, N. Shibata, and Y. Ikuhara, "Grain boundary Li-ion conductivity in (Li0.33La0.56)TiO3 polycrystal,"
Applied Physics Letters, 116, 043901(2020).
- S. Toyama, T. Seki, S. Anada, H. Sasaki, K. Yamamoto, Y. Ikuhara, N. Shibata, "Quantitative electric field mapping of a p–n junction by DPC STEM,"
Ultramicroscopy, 216, 113033(2020)
- J. K. Wei, T. Ogawa, B. Feng, T. Yokoi, R. Ishikawa, A. Kuwabara, K. Matsunaga, N. Shibata, and Y. Ikuhara, "Direct Measurement of Electronic Band Structures at Oxide Grain Boundaries,"
Nano Letters, 20 2530-36 (2020).
- M. Wei, A. V. Sanchela, B. Feng, Y. Ikuhara, H. J. Cho, and H. Ohta, "High electrical conducting deep-ultraviolet-transparent oxide semiconductor La-doped SrSnO3 exceeding similar to 3000 S cm(-1),"
Applied Physics Letters, 116, 022103(2020).
- P. C. Wu, H. L. Song, Y. Yuan, B. Feng, Y. Ikuhara, R. Huang, P. Yu, C. G. Duan, and Y. H. Chu, "Thickness dependence of transport behaviors in SrRuO3 /SrTiO3 superlattices,"
Physical Review Materials, 4, 014401(2020).
- R. Xiang, T. Inoue, Y. J. Zheng, A. Kumamoto, Y. Qian, Y. Sato, M. Liu, D. M. Tang, D. Gokhale, J. Guo, K. Hisama, S. Yotsumoto, T. Ogamoto, H. Arai, Y. Kobayashi, H. Zhang, B. Hou, A. Anisimov, M. Maruyama, Y. Miyata, S. Okada, S. Chiashi, Y. Li, J. Kong, E. I. Kauppinen, Y. Ikuhara, K. Suenaga, and S. Maruyama, "One-dimensional van der Waals heterostructures,"
Science, 367, 537-542(2020).
- C. Yang, B. Feng, J. Wei, E. Tochigi, S. Ishihara, N. Shibata, and Y. Ikuhara, "Atomic and electronic band structures of Ti-doped Al2O3 grain boundaries",
Acta Materialia, 201, 488-93(2020).
- Q. Yang, J. Lee, B. Feng, Y. Ikuhara, G. Kim, H. J. Cho, H. Jeen, and H. Ohta, "Unusually Large Thermopower Change from +330 to -185 mu V K-1 of Brownmillerite SrCoO2.5",
ACS Applied Electronic Materials, 2, 2250-2256(2020).
- T. T. Yao, Y. X. Jiang, C. L. Chen, X. X. Yan, A. Tao, L. X. Yang, K. Sugo, H. Ohta, H. Q. Ye, Y. Ikuhara, and X. L. Ma, "Ferroelectric Oxide Thin Film with an Out-of-Plane Electrical Conductivity,"
Nano Letters, 20, 1047-1053(2020).
- K. Yoshida, T. Kawasaki, A. Kuwabara, Y. Ukyo, and Y. Ikuhara, "In situ electron microscopic observation of electrochemical Li-intercalation into MoS2",
Solid State Ionics, 357, 115488(2020).
- K. Yoshida, Y. Sugawara, M. Saitoh, K. Matsumoto, R. Hagiwara, Y. Matsuo, A. Kuwabara, Y. Ukyo, and Y. Ikuhara, "Microscopic characterization of the C-F bonds in fluorine-graphite intercalation compounds,"
Journal of Power Sources, 445, 227320(2020).
- C. Zhou, A. Ott, R. Ishikawa, Y. Ikuhara, R. Riedel, and E. Ionescu, "Single-source-precursor synthesis and high-temperature evolution of novel mesoporous SiVN(O)-based ceramic nanocomposites",
Journal of the European Ceramic Society, 40, 6280-6287(2020).
- J. Zhu, R. Osuga, R. Ishikawa, N. Shibata, Y. Ikuhara, J. N. Kondo, M. Ogura, J. H. Yu, T. Wakihara, Z. D. Liu, and T. Okubo, "Ultrafast Encapsulation of Metal Nanoclusters into MFI Zeolite in the Course of Its Crystallization: Catalytic Application for Propane Dehydrogenation,"
Angewandte Chemie-International Edition, 59, 19669-19674(2020).
- R. J. Zhu, Z. M. Wang, Z. X. Cheng, X. L. Guo, T. Zhang, Z. L. Cai, H. Kimura, T. Matsumoto, N. Shibata, and Y. Ikuhara, "Composition gradient (1-x)Ba(Zr0.2Ti0.8)O-3-(x)(Ba0.7Ca0.3)TiO3 film with improved dielectric, piezoelectric and ferroelectric temperature stability,"
Ceramics International, 46 20284-90 (2020).
- R. J. Zhu, Z. M. Wang, Q. Z. Yao, Q. Y. Li, Z. X. Cheng, X. L. Guo, T. Zhang, X. S. Li, H. Kimura, T. Matsumoto, N. Shibata, and Y. Ikuhara, "Thickness-dependent frictional behavior of topological insulator Bi2Se3 nanoplates,"
Applied Physics a-Materials Science & Processing, 126, 285(2020).