ナノ構造情報のフロンティア開拓 - 材料科学の新展開

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A01（ア）計画研究

A01（ア）計画研究 ナノ構造解析のフロンティア開拓

  • A. Nakamura, E. Tochigi, R. Nagahara, Y. Furushima, Y. Oshima, Y. Ikuhara, T. Yokoi and K. Matsunaga, Structure of the basal edge dislocation in ZnO. Crystals 8, 127 (2018).
  • K. Kanamori, K. Toyoura, J. Honda, K. Hattori, A. Seko, M. Karasuyama, K. Shitara, M. Shiga, A. Kuwabara and I. Takeuchi, Exploring a potential energy surface by machine learning for characterizing atomic transport. Phys. Rev. B 97, 125124 (2018).
  • E. Tochigi, A. Nakamura, N. Shibata and Y. Ikuhara, Dislocation Structures in Low-angle Grain Boundaries of α-Al2O3. Crystals 8, 133 (2018).
  • D. Katsube, H. Yamashita, S. Abo and M. Abe, Combined pulsed laser deposition and non-contact atomic force microscopy system for studies of insulator metal oxide thin films. Beilstein J. Nanotechnol. 9, 686–692 (2018).
  • Y. Furushima, A. Nakamura, E. Tochigi, Y. Ikuhara, K. Toyoura and K. Matsunaga, <10-10> Dislocation at a {2-1-10} low-angle grain boundary in LiNbO3. Journal of Mater. Sci. 53, 333-344 (2018).
  • A. Yurtsever, M. Abe, S. Morita and Y. Sugimoto, An atom manipulation method to substitute individual adsorbate atoms into Si(111)-(7x7) substrate at room temperature. Appl. Phys. Lett. 111, 233102 (2017).
  • A. Nakamura, K. Yasufuku, Y. Furushima, K. Toyoura, K.P.D. Lagerlof and K. Matsunaga, Room-temperature plastic deformation of strontium titanate crystals grown from different chemical compositions. Crystals 7, 351 (2017).
  • A. Yurtsever, M. Abe, S. Morita and Y. Sugimoto, Role of lateral forces on atom manipulation process on Si(111)-(7x7) surface in dynamic force microscopy. Phys. Rev. B 96, 155412 (2017).
  • K. Matsunaga, K. Imaizumi, A. Nakamura and K. Toyoura, Physical Origin of Unusual Anisotropic Motion of Columnar Oxygen Ions in Apatite-Type Fast Ionic Conductor of Lanthanum Silicate. J. Phys. Chem. C 121, 20621-20628 (2017).
  • K. Matsunaga, Ionic conduction mechanisms of apatite-type lanthanum silicate and germanate from first principles. J. Ceram. Soc. Jpn 125, 670-676 (2017).
  • Y. Furushima, Y. Arakawa, A. Nakamura, E. Tochigi and K. Matsunaga, Nonstoichiometric [012] dislocation in strontium titanate. Acta Mater. 135, 103–111 (2017).
  • S. Jinno, H. Toki and M. Abe, Mechanism of common-mode noise and heat generation in an electric circuit with grounding using multiconductor transmission-line theory. Chin. J. Phys. 55, 904-915 (2017).
  • A. Nakamura, K. Matsunaga, E. Tochigi, N. Shibata, Y. Ikuhara and K.P.D. Lagerlöf, Another origin of yield drop behavior in sapphire deformed via basal slip: Recombination of climb-dissociated partial dislocations. Scripta Mater. 38, 109-113 (2017).
  • K. Toyoura, H. Tai, N. Hatada, K. Shizume and T. Uda, One-Dimensional Water Channels in lanthanum sulfate: a first-principles study. J. Mater. Chem. A 5, 20188-20194 (2017).
  • E. Tochigi, Y. Kezuka, A. Nakamura, A. Nakamura, N. Shibata and Y. Ikuhara, Direct Observation of Impurity Segregation at Dislocation Cores in an Ionic Crystal. Nano Letters 17, 2908-2912 (2017).
  • K. Imaizumi, K. Toyoura, A. Nakamura, K. Matsunaga, Cooperative oxide-ion conduction in apatite-type lanthanum germanate - A first principles study. J. Ceram. Soc. Jpn 125, 105-111 (2017).
  • A. Nakamura, M. Ukita, N. Shimoda, Y. Furushima, K. Toyoura and K. Matsunaga, First-principles calculations on slip system activation in the rock salt structure: Electronic origin of ductility in silver chloride. Philo. Mag. 97, 1281-1310 (2017).
  • S. Jinno, H. Toki and M. Abe, Configuration of Three Distributed Lines for Reducing Noise Due to the Coupling of the Common and Normal Modes. Nucl. Instrum. Methods Phys. Res. A 844, 19-23 (2017).
  • A. Yurtsever, D. F. -Torre, J. Onoda, M. Abe, S. Morita, Y. Sugimoto and R. Perez, Local electronic properties of individual Pt atoms adsorbed on TiO2(110) studied with Kelvin probe force microscopy and first-principles simulations. Nanoscale 9, 5812-5821 (2017).
  • A. Yurtsever, J. Onoda, T. Iimori, K. Niki, T. Miyamachi, M. Abe, S. Mizuno, S. Tanaka, F. Komori and Y. Sugimoto, Effects of Pb Intercalation on the Structural and Electronic Properties of Epitaxial Graphene on SiC. Small 12, 3956-3966 (2016).
  • K. Toyoura, J. Terasaka, A. Nakamura and K. Matsunaga, A First-Principles Study on Proton Conductivity of Acceptor-Doped Tin Pyrophosphate. J. Phys. Chem. C 121, 1578-1584 (2017).
  • M. Ukita, K. Toyoura, A. Nakamura, K. Matsunaga, Pressure-induced phase transition of calcite and aragonite: A first principles study. J. Appl. Phys. 120, 142118 (2016).
  • E. Tochigi, S. D. Findlay, E. Okunishi, T. Mizoguchi, A. Nakamura, N. Shibata and Y. Ikuhara, Atomic structure characterization of stacking faults on the {1-100} plane in α-alumina by scanning transmission electron microscopy. AIP Conf. Proc. 1763, 050003 (2016).
  • Y. Furushima, A. Nakamura, E. Tochigi, Y. Ikuhara, K. Toyoura and K. Matsunaga, Dislocation structures and electrical conduction properties of low angle tilt grain boundaries in LiNbO3. J. Appl. Phy. 120, 142107 (2016).
  • S. Okawaki, S. Abo, F. Wakaya, H. Yamashita, M. Abe and M. Takai, Characterization of X-ray charge neutralizer using carbon-nanotube field emitter. Jpn. J. Appl. Phys. 55, 06GF10 (2016).
  • K. Toyoura, J. Terasaka, A. Nakamura and K. Matsunaga, A First-Principles Study on Proton and Hydroxide-Ion Conduction in Acceptor- and Donner-Doped Tin Pyrophosphate. AMTC Letters 5, 86-87 (2016).
  • A. Nakamura, K. Yasufuku, Y. Furushima, K. Toyoura and K. Matsunaga, Room-temperature deformation behavior of SrTiO3 single crystals with different chemical compositions. AMTC Letters 5, 184-185 (2016).
  • E. Tochigi, T. Mizoguchi, A. Nakamura, N. Shibata and Y. Ikuhara, Experimental and Theoretical Investigation of the Stacking Fault on the (0001) Plane in Alumina. AMTC Letters 5, 178-179 (2016).
  • K. Imaizumi, K. Toyoura and K. Matsunaga, Conduction behavior of interstitial oxide-ion in apatite-type oxide-ion conductors. AMTC Letters 5, 110-111 (2016).
  • M. Ukita, K. Toyoura, A. Nakamura and K. Matsunaga, Atomic structure and energy of {001}<110> edge dislocations in AgCl and NaCl: A first principles study. AMTC Letters 5, 126-127 (2016).
  • Y. Furushima, A. Nakamura, E. Tochigi, Y. Ikuhara, K. Toyoura and K. Matsunaga, Dislocation structures at (0001)/<11-20> low-angle tilt grain boundaries in lithium niobate. AMTC Letters 5, 40-41 (2016).
  • K. Matsunaga, T.Y. Chang, R. Ishikawa, Q. Dong, K. Toyoura, A. Nakamura, Y. Ikuhara and N. Shibata, Adsorption sites of single noble metal atoms on the rutile TiO2 (110) surface influenced by different surface oxygen vacancies. J. Phys.: Condensed Matter 28, 175002 (2016).
  • K. Toyoura, D. Hirano, A. Seko, M. Shiga, A. Kuwabara, M. Karasuyama, K. Shitara and I. Takeuchi, Machine-learning-based selective sampling procedure for identifying the low-energy region in a potential energy surface: A case study on proton conduction in oxides. Phys. Rev. B 93, 054112 (2016).
  • H. Toki and M. Abe, Multiconductor transmission-line theory that includes an antenna process with a lumped-parameter circuit. J. Phys. Soc. Jpn. 85, 034801 (2016).
  • A. Yurtsever, J. Onoda, M. Abe, C. L. Pang, Y. Sugimoto, Imaging the TiO2 (011)-(2×1) Surface using Noncontact Atomic Force Microscopy and Scanning Tunneling Microscopy. J. Phys. Chem. C 120, 3390-3395 (2016).
  • K. Matsunaga, T. Kubota, K. Toyoura and A. Nakamura, First-principles calculations of divalent substitution of Ca2+ in tricalcium phosphates. Acta Biomater. 23, 329-337 (2015)
  • K. Imaizumi, K. Toyoura, A. Nakamura and K. Matsunaga, Strong correlation in 1D oxygen-ion conduction of apatite-type lanthanum silicate. J. Phys.: Condensed Matter 27, 365601 (2015).
  • K. Toyoura, M. Ohta, A. Nakamura and K. Matsunaga, First-principles study on phase transition and ferroelectricity in pseudo-Ilmenite lithium niobate and tantalate. J. Appl. Phys. 118, 064103 (2015)
  • S. Aryal, K. Matsunaga and W.Y. Ching, Ab initio simulation of elastic and mechanical properties of Zn- and Mg-doped Hydroxyapatite. J. Mech. Behav. Biomed. Mater. 47, 135-146 (2015).
  • D. Katsube, Y. Takase, H. Yamashita, S. Abo, F. Wakaya and M. Abe, A Preparation Method for Atomically Clean Sapphire Surfaces and High Resolution Topographic Method for Their Imaging by Non-contact Atomic Force Microscopy. Mater. Trans. 56, 1310-1313 (2015).
  • E. Tochigi, A. Nakamura, T. Mizoguchi, N. Shibata and Y. Ikuhara, Dissociation of the 1/3 <-1101> dislocation and formation of the anion stacking fault on the basal plane in α-Al2O3. Acta Mater. 91, 152-161 (2015).
  • F. Wakaya, T. Kurihara, N. Yurugi, S. Abo, M. Abe and M. Takai, Maskless Laser Processing of graphene. Microelectron. Eng. 141, 203-206 (2015).
  • S. Yamazaki, K. Maeda, Y. Sugimoto, M. Abe, V. Zobac, P. Pou, L. Rodrigo, P. Mutombo, R. Perez, P. Jelinek, S. Morita, Interplay between switching driven by the tunneling current and atomic force of a four-atom Si quantum dot by means of scanning probe microscopy. Nano Letters 15, 4356-4363 (2015).
  • S. Okawaki, S. Abo, F. Wakaya, M. Abe, and M. Takai, X-ray source using carbon-nanotube field emitter with side-gate electrode. Jpn. J. Appl. Phys. 54, 06FF10 (2015).
  • K. Toyoura, A. Nakamura and K. Matsunaga, First-Principles Analysis of Proton Conduction Mechanism in Pyrochlore-Structured Lanthanum Zirconate. J. Phys. Chem. C 119, 8480-8487 (2015).
  • J. Terasaka, K. Toyoura, A. Nakamura and K. Matsunaga, Hydroxide-ion incorporation and conduction mechanisms in tin pyrophosphate. J. Mater. Chem. A 3, 11905-11911 (2015).
  • D. F. Torre, A. Yurtsever, J. Onoda, M. Abe, S. Morita, Y. Sugimoto and R. Pérez, Pt atoms adsorbed on TiO2(110)-(1×1) studied with non-contact atomic force microscopy and first-principles simulations. Phys. Rev. B 91, 075401 (2015).
  • E. Inami, I. Hamada, K. Ueda, M. Abe, S. Morita and Y. Sugimoto, Room-temperature concerted switch of a binary atom cluster. Nat. Commun. 6, 6231 (2015).
  • N. Hatada, K. Toyoura, T. Onishi, Y. Adachi and T. Uda, J. Phys. Chem. C, Fast and Anisotropic Proton Conduction in a Crystalline Polyphosphate. J. Phys. Chem. C 118, 29629-29635 (2014).
  • K. Matsunaga, Y. Tanaka, K. Toyoura, A. Nakamura, Y. Ikuhara and N. Shibata, Existence of basal oxygen vacancies on the rutile TiO2 (110) surface. Phys. Rev. B 90, 195303 (2014).
  • S. Kitora, M. Abe and H. Toki, Electromagnetic Noise in Electric Circuits: Ringing and Resonance Phenomena in the Common Mode. AIP advances 4, 117119 (2014).
  • S. Kuhn, M. Kittelmann, Y. Sugimoto, M. Abe, A. Kühnle and P. Rahe, Identifying the absolute orientation of a low-symmetry surface in real space. Phys. Rev. B 90, 195405 (2014).
  • K. Imaizumi, K. Toyoura, A. Nakamura and K. Matsunaga, Stable sites and diffusion pathways of interstitial oxide ions in lanthanum germanate. Solid State Ionics 262, 512-516 (2014).
  • K. Yamasue, M. Abe, Y. Sugimoto and Y. Cho, Atomic-dipole-moment induced local surface potential on Si(111)-(7x7) surface studied by non-contact scanning nonlinear dielectric microscopy. Appl. Phys. Lett. 105, 121601 (2014).
  • K. Kato, K. Toyoura, A. Nakamura and K. Matsunaga, First-principles analysis on proton diffusivity in La3NbO7. Solid State Ionics 262, 472-475 (2014).
  • M. Suzuki, K. Yamasue, M. Abe, Y. Sugimoto and Y. Cho, Improved study of electric dipoles on a Si(100)-2×1 surface by non-contact scanning nonlinear dielectric microscopy. Appl. Phys. Lett. 105, 101603 (2014).
  • T. Kubota, A. Nakamura, K. Toyoura and K. Matsunaga, The effect of chemical potential on the thermodynamic stability of carbonate ions in hydroxyapatite. Acta Biomater. 10, 3716-3722 (2014).
  • Y. Sugimoto, A. Yurtsever, N. Hirayama, M. Abe and S. Morita, Mechanical gate control for atom-by-atom cluster assembly with scanning probe microscopy. Nat. Commun. 5, 4360 (2014).
  • T. Ogawa, A. Kuwabara, C.A.J. Fisher, H. Moriwake, K. Matsunaga, K. Tsuruta and S. Kitaoka, A density functional study of vacancy formation in grain boundaries of undoped α-alumina. Acta Mater. 69, 365-371 (2014).
  • E. Tochigi, Y. Kezuka, A. Nakamura, N. Shibata, Y. Ikuhara, The Structure of Screw Dislocations in an α-Al2O3 Bicrystal with a Low-angle Twist Grain Boundary. AMTC Letters 4, 8-9 (2014).
  • A. Nakamura, Y. Furushima, E.Tochigi, Y. Ikuhara, K. Toyoura and K. Matsunaga, Boundary Dislocations at a Low Angle Grain Boundary Including Twist Component in LiNbO3. AMTC Letters 4, 20-21 (2014).
  • K. Toyoura, A. Nakamura and K. Matsunaga, Proton Incorporation and Migration in Monazite-Structured Oxides. AMTC Letters 4, 104-105 (2014).
  • T. Ogawa, A. Kuwabara, C.A.J. Fisher, H. Moriwake, T. Matsudaira, K. Matsunaga and S. Kitaoka, A Theoretical Study of Temperature Dependence Vacancy Formation at Grain Boundaries in Non-doped α-Alumina. AMTC Letters 4, 106-107 (2014).
  • A. Goto, K. Toyoura, A. Nakamura and K. Matsunaga, First-Principles Study on Atomic Structure and Stability of Ferroelectric Domains in Lithium Niobate. AMTC Letters 4, 124-125 (2014).
  • K. Toyoura, A. Nakamura and K. Matsunaga, First-Principles Analyses of Proton Incorporation in Calcium Phosphate, T. Sugimoto. AMTC Letters 4, 126-127 (2014).
  • N. Shimoda, Y. Furushima, K. Toyoura, A. Nakamura and K. Matsunaga, First-Principles Study of Energetics of Slip Deformation in NaCl and AgCl. AMTC Letters 4, 128-129 (2014).
  • K. Yoshida, K. Toyoura, K. Matsunaga, A. Nakahira, H. Kurata, Y.H. Ikuhara and Y. Sasaki, Atomic Sites and Stability of Cs+ Adsorbed within NaA Zeolite. AMTC Letters 4, 172-173 (2014).
  • K. Kato, K. Toyoura, A. Nakamura and K. Matsunaga, Proton Channels along Oxygen Octahedral Chains in La3NbO7. J. Phys. Chem. C 118, 9377-9384 (2014).
  • K. Shitara, H. Murata, K. Watanabe, C. Kojima, Y. Sumida, A. Nakamura, A. Nakahira, I. Tanaka and K. Matsunaga, Cytotoxicity of stoichiometric hydroxyapatites with different crystallite sizes. J. Asian Ceram. Soc. 2, 64-67 (2014).
  • K. Tsuruta, E. Tochigi, Y. Kezuka, K. Takata, N. Shibata, A. Nakamura and Y. Ikuhara, Core structure and dissociation energetics of basal edge dislocation in α-Al2O3: A combined atomistic simulation and transmission electron microscopy analysis. Acta Mater. 65, 76-84 (2014).
  • T.Y. Chang, Y. Tanaka, R. Ishikawa, K. Toyoura, K. Matsunaga, Y. Ikuhara and N. Shibata, Direct imaging of Pt single atoms adsorbed on TiO2 (110) surfaces. Nano Letters 14, 134-138 (2014).
  • I. Kishida, K. Orita, A. Nakamura and Y. Yokogawa, Thermodynamic analysis using first-principles calculations of phases and structures of LixNi0.5Mn1.5O4(0≤x≤1). J. Power Sources 241, 1-5 (2013).
  • Y. Sugimoto, M. Ondráček, M. Abe, P. Pou, S. Morita, Ruben Pérez, F. Flores and P. Jelinek, Quantum degeneracy in atomic point contacts revealed by chemical force and conductance. Phys. Rev. Lett. 111, 106803 (2013).
  • K. Toyoura and K. Matsunaga, Hydrogen bond dynamics in proton-conducting lanthanum arsenate. J. Phys. Chem. C 117, 18006-18012 (2013).
  • K. Yoshida, K. Toyoura, K. Matsunaga, A. Nakahira, H. Kurata, Y.H. Ikuhara and Y. Sasaki, Atomic sites and stability of Cs+ captured within zeolitic nanocavities. Scientific Reports 3, 2457 (2013).
  • Y. Sugimoto, A. Yurtsever, M. Abe, S. Morita, M. Ondráček, P. Pou, R. Pérez and P. Jelínek, Role of tip chemical reactivity on atom manipulation process in dynamic force microscopy. ACS Nano 7, 7370-7376 (2013).
  • M. Mori, K. Matsunaga, T. Kubota, A. Goto, K. Toyoura, A. Nakamura and I. Tanaka, Theoretical calculations of segregation behavior of zinc and magnesium at hydroxyapatite surface in contact with water. Mater. Trans. 54, 1262-1267 (2013).
  • A. Nakamura, T. Mizoguchi, K. Matsunaga, T. Yamamoto, N. Shibata and Y. Ikuhara, Periodic Nanowire Array at the Crystal Interface. ACS Nano 7, 6297-6302 (2013).
  • N. Hatada, K. Toyoura, Y. Nose and T. Uda, Vapor Pressure Measurements on Lanthanum Polyphosphate and Ultraphosphate by Transpiration Method. J. Chem. Thermodynamics 61, 147-153 (2013).
  • A. Yurtsever, Y. Sugimoto, H. Tanaka, M. Abe, S. Morita, M. Ondráček, P. Pou, R. Pérez and P. Jelínek, Force mapping on hydrogen terminated Si(111)-(7x7) surface. Phys. Rev. B 87, 155403 (2013).