IKUHARA YUICHI

[1] J. P. Buban, T. Mizoguchi, N. Shibata, E. Abe, T. Yamamoto, and Y. Ikuhara, “Zr segregation and associated Al vacancies in alumina grain boundaries,” Journal of the Ceramic Society of Japan, 119[1395], 840-844(2011).

[2] S. Chakraverty, A. Ohtomo, D. Okuyama, M. Saito, M. Okude, R. Kumai, T. Arima, Y. Tokura, S. Tsukimoto, Y. Ikuhara, and M. Kawasaki, “Ferrimagnetism and spontaneous ordering of transition metals in double perovskite La2CrFeO6 films,” Physical Review B, 84[6], 064436(2011).

[3] S. Chakraverty, M. Saito, S. Tsukimoto, Y. Ikuhara, A. Ohtomo, and M. Kawasaki, “Magnetic properties of Sr2FeTaO6 double perovskite epitaxially grown by pulsed-laser deposition,” Applied Physics Letters, 99[22], 223101 (2011).

[4] S. D. Findlay, S. Azuma, N. Shibata, E. Okunishi, and Y. Ikuhara, “Direct oxygen imaging within a ceramic interface, with some observations upon the dark contrast at the grain boundary,” Ultramicroscopy, 111[4], 285-289(2011).

[5] S. D. Findlay, N. R. Lugg, N. Shibata, L. J. Allen, and Y. Ikuhara, “Prospects for lithium imaging using annular bright field scanning transmission electron microscopy: A theoretical study,” Ultramicroscopy, 111[8], 1144-1154(2011).

[6] L. Gu, C. Zhu, H. Li, Y. Yu, C. Li, S. Tsukimoto, J. Maier, and Y. Ikuhara, “Direct Observation of Lithium Staging in Partially Delithiated LiFePO4 at Atomic Resolution,” Journal of the American Chemical Society, 133[13], 4661-4663(2011).

[7] X. He, L. Gu, C. Zhu, Y. Yu, C. Li, Y.-S. Hu, H. Li, S. Tsukimoto, J. Maier, Y. Ikuhara, and X. Duan, “Direct Imaging of Lithium Ions Using Aberration-Corrected Annular-Bright-Field Scanning Transmission Electron Microscopy and Associated Contrast Mechanisms,” Materials Express, 1[1], 43-50(2011).

[8] H. Hojo, E. Tochigi, T. Mizoguchi, H. Ohta, N. Shibata, B. Feng, and Y. Ikuhara, “Atomic structure and strain field of threading dislocations in CeO2 thin films on yttria-stabilized ZrO2,” Applied Physics Letters, 98[15], 153104 (2011).

[9] R. Huang, T. Hitosugi, S. D. Findlay, C. A. J. Fisher, Y. H. Ikuhara, H. Moriwake, H. Oki, and Y. Ikuhara, “Real-time direct observation of Li in LiCoO2 cathode material,” Applied Physics Letters, 98[5], 051913 (2011).

[10] R. Huang, Y. H. Ikuhara, T. Mizoguchi, S. D. Findlay, A. Kuwabara, C. A. J. Fisher, H. Moriwake, H. Oki, T. Hirayama, and Y. Ikuhara, “Oxygen-Vacancy Ordering at Surfaces of Lithium Manganese(III,IV) Oxide Spinel Nanoparticles,” Angewandte Chemie-International Edition, 50[13], 3053-3057(2011).

[11] Y. Ikuhara, “Grain boundary atomic structures and light-element visualization in ceramics: combination of Cs-corrected scanning transmission electron microscopy and first-principles calculations,” Journal of Electron Microscopy, 60, S173-S188(2011).

[12] Y. Ikuhara, and M. Kohyama, “Preface to the special issue on intergranular and interphase boundaries in materials,” Journal of Materials Science, 46[12], 4093-4094(2011).

[13] Y. Kezuka, E. Tochigi, N. Shibata, and Y. Ikuhara, “TEM analysis of dislocation structures formed in the Cr-doped grain boundary of alumina,” Journal of the Ceramic Society of Japan, 119[1395], 817-821(2011).

[14] Y. Kezuka, E. Tochigi, N. Shibata, C. Moon, S. Kanehira, K. Hirao, and Y. Ikuhara, “Formation of a Cr3+-rich luminescent thin phase along a grain boundary of alpha-Al2O3,” Journal of the Ceramic Society of Japan, 119[1391], 620-622(2011).

[15] S. Kobayashi, Y. Tokuda, T. Ohnishi, T. Mizoguchi, N. Shibata, Y. Sato, Y. Ikuhara, and T. Yamamoto, “Cation off-stoichiometric SrMnO3-delta thin film grown by pulsed laser deposition,” Journal of Materials Science, 46[12], 4354-4360(2011).

[16] H. S. Lee, S. D. Findlay, T. Mizoguchi, and Y. Ikuhara, “The effect of vacancies on the annular dark field image contrast of grain boundaries: A SrTiO3 case study,” Ultramicroscopy, 111[11], 1531-1539(2011).

[17] H. S. Lee, T. Mizoguchi, J. Mistui, T. Yamamoto, S. J. L. Kang, and Y. Ikuhara, “Defect energetics in SrTiO3 symmetric tilt grain boundaries,”Physical Review B, 83[10], 104110(2011).

[18] H.-S. Lee, T. Mizoguchi, T. Yamamoto, S.-J. L. Kang, and Y. Ikuhara, “Characterization and atomic modeling of an asymmetric grain boundary,” Physical Review B, 84[19], 195319(2011).

[19] N. R. Lugg, S. D. Findlay, N. Shibata, T. Mizoguchi, A. J. D'Alfonso, L. J. Allen, and Y. Ikuhara, “Scanning transmission electron microscopy imaging dynamics at low accelerating voltages,” Ultramicroscopy, 111[8], 999-1013(2011).

[20] T. Matsudaira, S. Kitaoka, N. Shibata, T. Nakagawa, and Y. Ikuhara, “Mass transfer through a single grain boundary in alumina bicrystals under oxygen potential gradients,” Journal of Materials Science, 46[12], 4407-4412(2011).

[21] T. Mitsuma, T. Tohei, N. Shibata, T. Mizoguchi, T. Yamamoto, and Y. Ikuhara, “Structures of a Sigma=9, 110 /{221} symmetrical tilt grain boundary in SrTiO3,” Journal of Materials Science, 46[12], 4162-4168(2011).

[22] T. Mizoguchi, H. Ohta, H.-S. Lee, N. Takahashi, and Y. Ikuhara, “Controlling Interface Intermixing and Properties of SrTiO3-Based Superlattices,” Advanced Functional Materials, 21[12], 2258-2263(2011).

[23] T. Mizuno, Y. Nagao, A. Yoshikawa, K. Koumoto, T. Kato, Y. Ikuhara, and H. Ohta, “Electric field thermopower modulation analysis of an interfacial conducting layer formed between Y2O3 and rutile TiO2,” Journal of Applied Physics, 110[6], 063719 (2011).

[24] C. M. Montesa, N. Shibata, T. Tohei, and Y. Ikuhara, “TEM observation of liquid-phase bonded aluminum-silicon/aluminum nitride hetero interface,” Journal of Materials Science, 46[12], 4392-43962011).

[25] C. Moon, S. Kanehira, K. Miura, E. Tochigi, N. Shibata, Y. Ikuhara, and K. Hirao, “Morphology change from nanocrack into periodic pore array formed by femtosecond laser pulses,” Journal of Applied Physics, 109[1], 013517 (2011).

[26] T. Nakagawa, A. Nakamura, I. Sakaguchi, N. Shibata, T. Mizoguchi, T. Yamamoto, H. Haneda, N. Ohashi, and Y. Ikuhara, “Cation diffusion along basal dislocations in sapphire,” Acta Materialia, 59[3], 1105-1111(2011).

[27] T. Nakagawa, H. Nishimura, I. Sakaguchi, N. Shibata, K. Matsunaga, T. Yamamoto, and Y. Ikuhara, “Grain boundary character dependence of oxygen grain boundary diffusion in alpha-Al2O3 bicrystals,” Scripta Materialia, 65[6], 544-547(2011).

[28] K. Nakamura, T. Mizoguchi, N. Shibata, K. Matsunaga, T. Yamamoto, and Y. Ikuhara, “First-principles sliding simulation of Al-terminated Sigma 13 pyramidal twin grain boundary in alpha-Al2O3 (vol 90, pg 159, 2010),” Philosophical Magazine Letters, 91[9], 561-562(2011).

[29] K. Nakamura, T. Mizoguchi, N. Shibata, K. Matsunaga, T. Yamamoto, and Y. Ikuhara, “Erratum: First-principles study of grain boundary sliding in alpha-Al2O3 (vol 75, 184109, 2007),” Physical Review B, 84[5], 059903(2011).

[30] H. Ogino, Y. Shimizu, N. Kawaguchi, K. Kishio, J.-i. Shimoyama, T. Tohei, and Y. Ikuhara, “A new iron pnictide oxide (Fe2As2)(Ca-5(Mg, Ti)(4)O-y) and a new phase in the Fe-As-Ca-Mg-Ti-O system,” Superconductor Science & Technology, 24[8], 085020(2011).

[31] Y. Sato, T. Hirayama, and Y. Ikuhara, “Real-Time Direct Observations of Polarization Reversal in a Piezoelectric Crystal: Pb(Mg1/3Nb2/3)O-3-PbTiO3 Studied via In Situ Electrical Biasing Transmission Electron Microscopy,” Physical Review Letters, 107[18], 187601(2011).

[32] I. Sugiyama, M. Goto, T. Taniuchi, F. Shirase, T. Tanase, K. Okada, Y. Ikuhara, and T. Yamamoto, “Blunt corners of WC grains induced by lowering carbon content in WC-12mass%Co cemented carbides,” Journal of Materials Science, 46[12], 4413-4419(2011).

[33] E. Tochigi, N. Shibata, A. Nakamura, T. Yamamoto, and Y. Ikuhara, “Dislocation structures in a {(1)over-bar104}/< 11(2)over-bar0 > low-angle tilt grain boundary of alumina (alpha-Al2O3),” Journal of Materials Science, 46[12], 4428-4433(2011).

[34] Y. Tokuda, S. Kobayashi, T. Ohnishi, T. Mizoguchi, N. Shibata, Y. Ikuhara, and T. Yamamoto, “Growth of Ruddlesden-Popper type faults in Sr-excess SrTiO3 homoepitaxial thin films by pulsed laser deposition,” Applied Physics Letters, 99[17], 173109 (2011).

[35] Y. Tokuda, S. Kobayashi, T. Ohnishi, T. Mizoguchi, N. Shibata, Y. Ikuhara, and T. Yamamoto, “Strontium vacancy clustering in Ti-excess SrTiO3 thin film,” Applied Physics Letters, 99[3], 033110 (2011).

[36] Z. Wang, M. Saito, K. P. McKenna, L. Gu, S. Tsukimoto, A. L. Shluger, and Y. Ikuhara, “Atom-resolved imaging of ordered defect superstructures at individual grain boundaries,” Nature, 479[7373], 380-383(2011).

[37] Z. Wang, M. Saito, S. Tsukimoto, and Y. Ikuhara, “Heterointerfaces: atomic structures, electronic states, and related properties,” Journal of the Ceramic Society of Japan, 119[1395], 783-793(2011).

[38] Z. Wang, S. Tsukimoto, R. Sun, M. Saito, and Y. Ikuhara, “Atomic-scale Ti3SiC2 bilayers embedded in SiC: Formation of point Fermi surface,” Applied Physics Letters, 98[10], 104101 (2011).

[39] Y. Yamada, K. Ueno, T. Fukumura, H. T. Yuan, H. Shimotani, Y. Iwasa, L. Gu, S. Tsukimoto, Y. Ikuhara, and M. Kawasaki, “Electrically Induced Ferromagnetism at Room Temperature in Cobalt-Doped Titanium Dioxide,” Science, 332[6033], 1065-1067(2011).

[40] S. Zheng, R. Huang, Y. Makimura, Y. Ukyo, C. A. J. Fisher, T. Hirayama, and Y. Ikuhara, “Microstructural Changes in LiNi0.8Co0.15Al0.05O2 Positive Electrode Material during the First Cycle,” Journal of the Electrochemical Society, 158[4], A357-A362(2011).