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12 Result(s)

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  1. No Access

    Article

    The transport–structural correspondence across the nematic phase transition probed by elasto X-ray diffraction

    Electronic nematicity in iron pnictide materials is coupled to both the lattice and the conducting electrons, which allows both structural and transport observables to probe nematic fluctuations and the order ...

    Joshua J. Sanchez, Paul Malinowski, Joshua Mutch, Jian Liu, J.-W. Kim… in Nature Materials (2021)

  2. No Access

    Article

    Enhancement of charge breeding efficiency for rare isotope beam with the control of magnetic field profile and electron beam energy in EBIS

    The magnetic field in the ion trap of electron beam ion source (EBIS) determines the current density of electron beam and thus the depth of trap potential, which affects the charge breeding efficiency to desir...

    J. W. Kim in Journal of Theoretical and Applied Physics (2020)

  3. No Access

    Article

    Three-dimensional imaging of dislocation dynamics during the hydriding phase transformation

    Crystallographic imperfections significantly alter material properties and their response to external stimuli, including solute-induced phase transformations. Despite recent progress in imaging defects using e...

    A. Ulvestad, M. J. Welland, W. Cha, Y. Liu, J. W. Kim, R. Harder… in Nature Materials (2017)

  4. No Access

    Article

    Enhanced ordering temperatures in antiferromagnetic manganite superlattices

    The disorder inherent to do** by cation substitution in the complex oxides can have profound effects on collective-ordered states. Here, we demonstrate that cation-site ordering achieved through digital-synt...

    S. J. May, P. J. Ryan, J. L. Robertson, J.-W. Kim, T. S. Santos… in Nature Materials (2009)

  5. No Access

    Article

    A model system for strain effects: epitaxial magnetic films on a piezoelectric substrate

    Epitaxial magnetic oxide films can be reversibly strained on piezoelectric monocrystalline substrates of Pb(Mg1/3Nb2/3)0.72Ti0.28O3(PMN-PT). The magnetic film/piezoelectric substrate sample that undergoes well-de...

    K. Dörr, O. Bilani-Zeneli, A. Herklotz, A. D. Rata… in The European Physical Journal B (2009)

  6. No Access

    Article

    Ferroelectric and dielectric properties of SrBi4Ti4O15 thin films grown on Bi4Ti3O12 film layer

    Ferroelectric and dielectric properties of bilayered ferroelectric thin films, SrBi4Ti4O15 grown on Bi4Ti3O12, were investigated. The thin films were annealed at 700°C under oxygen atmosphere. The bilayered thin ...

    D. Do, S. S. Kim, S. W. Yi, J. W. Kim in Applied Physics A (2009)

  7. No Access

    Article

    A New Development of Photoacoustic Detection for Microchip-CE Using a Simple Pick-up Device

    A new approach to laser-based non-fluorescence detection was developed for microchip-capillary electrophoresis (microchip-CE) utilizing an electrical pick-up device. An intensity-modulated laser beam was irrad...

    J. W. Kim, A. K. Lee, M. S. Jeoung, J. Y. Lee… in International Journal of Thermophysics (2008)

  8. No Access

    Article

    Surface effects on the orbital order in the single-layered manganite La0.5Sr1.5MnO4

    The question of how bulk electronic order is terminated at a surface is an intriguing one, and one with possible practical implications—for example in nanoscaled systems that may be characterized by their surf...

    Y. Wakabayashi, M. H. Upton, S. Grenier, J. P. Hill, C. S. Nelson… in Nature Materials (2007)

  9. No Access

    Article

    Ferromagnetic Properties of Mn-Doped III–V Semiconductor Quantum Wells

    We investigate magnetic properties of In1−xMn x P and Ga1−xMn x N quantum wells in the mean-field approximation and show the difference between ...

    N. Kim, J. W. Kim, S. J. Lee, Y. Shon, T. W. Kang, G. Ihm… in Journal of Superconductivity (2005)

  10. No Access

    Article

    Ground-state correlations and finite temperature properties of the transverse Ising model

    We present a semi-analytic study of Ising spins on a simple square or cubic lattice coupled to a transverse magnetic field of variable strength. The formal analysis employs correlated basis functions (CBF) t...

    J. W. Kim, S. J. Lee, T. W. Kang… in The European Physical Journal B - Condense… (2005)

  11. No Access

    Article

    Synthesis of epitaxial γAl2O3 thin films by thermal oxidation of AlN/sapphire(0001) thin films

    The synthesis of epitaxial γAl2O3 films by oxidizing AlN/sapphire(0001) films was investigated in a synchrotron X-ray scattering experiment. Porous γAl2O3 nucleates on the surface of the AlN film when annealed ab...

    H.C. Kang, S.H. Seo, H.W. Jang, D.H. Kim, J.W. Kim, D.Y. Noh in Applied Physics A (2003)

  12. No Access

    Article

    Application of the Fermi Hypernetted-Chain theory and Effective Correlation Factor method for laughlin quantum Hall states

    The Fermi Hypernetted-Chain theory and the Effective Correlation Factor method is applied to study the Laughlin states describing the fractional quantum Hall effect. Employing this formalism we evaluate the co...

    O. Ciftja, S. Fantoni, J. W. Kim, M. L. Ristig in Journal of Low Temperature Physics (1997)