Papers in 2011

  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,”
    J. Ceram. Soc. Jpn, 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,”
    Phys. Rev. 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,”
    Appl. Phys. Lett., 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,”
    J. Am. Chem. Soc., 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,”
    Mater. 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,”
    Appl. Phys. Lett., 98[15], 53104 (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,”
    Appl. Phys. Lett., 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,”
    Angew. Chem. Int. Ed., 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,”
    J. Electron. Microsc., 60(S1), S173-S188(2011).

  12. Y. Ikuhara, and M. Kohyama, “Preface to the special issue on intergranular and interphase boundaries in materials,”
    J. Mater. Sci., 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,”
    J. Ceram. Soc. Jpn., 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,”
    J. Ceram. Soc. Jpn., 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,”
    J. Mater. Sci., 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, 11[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,”
    Phys. Rev. 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,”
    Phys. 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,”
    J. Mater. Sci., 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,”
    J. Mater. Sci., 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,”
    Adv. Funct. Mater.,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,”
    J.Appl. Phys., 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,”
    J.Mater. Sci., 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,”
    J. Appl. Phys., 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 Mater., 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,”
    Scr. Mater., 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),”
    Philos. Mag. Lett., 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),”
    Phys. Rev. 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,”
    Supercond. Sci. Technol., 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,”
    Phys. Rev. Lett., 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,”
    J. Mater. Sci., 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),”
    J. Mater. Sci., 6[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,”
    Appl. Phys. Lett., 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,”
    Appl. Phys. Lett., 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,”
    J. Ceram. Soc. Jpn., 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,”
    Appl. Phys. Lett., 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,”
    J. Electrochem. Soc., 158[4], A357-A362(2011).