Search Results - "Bu, S.D."

Surface-direction dependence of the oxygen vacancy formation in SrTiO3 single crystals by Lim, Junhwi, Lee, Y.S., Bu, S.D.

“…We investigated the changes in the emission characteristics of SrTiO3 (STO) single crystals under control of oxygen vacancies by using gamma-ray irradiation…”
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Template-directed formation of functional complex metal-oxide nanostructures by combination of sol–gel processing and spin coating by Choi, Y.C., Kim, J., Bu, S.D.

“…We report the template-based formation of functional complex metal-oxide nanostructures by a combination of sol–gel processing and spin coating. This method…”
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Ferroelectric relaxor properties of (1 − x)K0.5Na0.5NbO3–xBa0.5Ca0.5TiO3 ceramics by Cho, C.-W., Cha, M.R., Jang, J.Y., Lee, S.H., Kim, D.J., Park, S., Bae, J.S., Bu, S.D., Lee, S., Huh, J.

“…The Ba0.5Ca0.5TiO3 (BCT) composition dependent dielectric and structural properties of (1−x)K0.5Na0.5NbO3–xBa0.5Ca0.5TiO3 powders were investigated. Room…”
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Electric field-driven modulation in structural and luminescent properties of Eu3+-doped (1 − x)(Na0.5Bi0.5)TiO3 − xBaTiO3 relaxor ferroelectrics by Wi, S.W., Han, J.H., Kim, E.Y., Cho, S.Y., Bu, S.D., Lee, Y.S.

“…We investigated the structural, electrical, and luminescent properties of Eu3+-doped (1 − x)(Na0.5Bi0.5)TiO3 − xBaTiO3 (NBT-BT:Eu) relaxor ferroelectrics for…”
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Giant Piezoelectricity on Si for Hyperactive MEMS by Baek, S. H., Park, J., Kim, D. M., Aksyuk, V. A., Das, R. R., Bu, S. D., Felker, D. A., Lettieri, J., Vaithyanathan, V., Bharadwaja, S. S. N., Bassiri-Gharb, N., Chen, Y. B., Sun, H. P., Folkman, C. M., Jang, H. W., Kreft, D. J., Streiffer, S. K., Ramesh, R., Pan, X. Q., Trolier-McKinstry, S., Schlom, D. G., Rzchowski, M. S., Blick, R. H., Eom, C. B.

“…Microelectromechanical systems (MEMS) incorporating active piezoelectric layers offer integrated actuation, sensing, and transduction. The broad implementation…”
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Reversible conversion of the valence states of Eu ions in ABaPO4 (A = Li, Na, and K) in terms of change in luminescence property by Jang, Soyeong, Wi, S.W., Lim, Hyeontae, Chung, J.-S., Bu, S.D., Noh, H.J., Lee, Y.S.

“…We investigated the emission properties of Eu ion-doped ABaPO4 (ABaPO4:Eu, A = Li, Na, and K) in which the valence state of the Eu ions was controlled by…”
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Gamma-ray irradiation effects on electrical properties of bismuth layer-structured ferroelectric ceramics by Cho, S.Y., Choi, G.P., Kim, E.Y., Lee, G.J., Lee, M.K., Bu, S.D.

“…In this study, we prepared the bismuth layer-structured ferroelectric (BLSF)-type Bi4Ti3O12 (BiT), Bi3.25La0.75Ti3O12 (BLaT), and Bi3.1Nd0.9Ti3O12 (BNdT)…”
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Influence of mobile space charges on electrical properties of ferroelectric Bi 3.5La 0.5Ti 3O 12 thin films by Bu, S.D.

“…Lanthanum-substituted bismuth titanate, Bi 3.5La 0.5Ti 3O 12 (i.e., x=0.5 in Bi 4− x La x Ti 3O 12), thin films have been grown on Pt/Ti/SiO 2/Si substrates…”
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Strain effect on the visible emission in PbTiO3 nanotubes: Template and wall-thickness dependence by Jeon, C.H., Lee, Y.S., Yee, K.J., Han, J.K., Bu, S.D.

“…We investigated the strain effect on temperature-dependent photoluminescence property in the clamped (with template) and free-standing (without template)…”
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High critical current density and enhanced irreversibility field in superconducting MgB2 thin films by EOM, C. B, LEE, M. K, POLYANSKII, A, GUREVICH, A, CAI, X. Y, BU, S. D, BABCOCK, S. E, MELLSTROM, E. E, LARBALESTIER, D. C, ROGADO, N, REGAN, K. A, HAYWARD, M. A, CHOI, J. H, HE, T, SLUSKY, J. S, INUMARU, K, HAAS, M. K, CAVA, R. J, BELENKY, L. J, SONG, X, COOLEY, L. D, NAUS, M. T, PATNAIK, S, JIANG, J, RIKEL, M

“…The discovery of superconductivity at 39 K in magnesium diboride offers the possibility of a new class of low-cost, high-performance superconducting materials…”
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Relaxation currents in poly-4-vinylphenol dielectrics: Trapping and macroscopic polarization by Hamza, A.M., Myung-Whun, K., Bu, S.D., Seo, J.M., Lee, J.-K.

“…The trapping currents and the macroscopic polarization–depolarization currents were observed together for a series of on-off switching of O2 plasma-treated and…”
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Relaxation currents from macroscopic depolarization in poly-4-vinylphenol dielectrics by Hamza, A.M., Han, J.K., Bu, S.D., Seo, J.M., Lee, J.-K.

“…Polarization and depolarization currents were obtained from a capacitor structure with poly-4-vinylphenol (PVP) dielectrics by on-off switching. A single Debye…”
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Structure of alumina nanowires synthesized by chemical etching of anodic alumina membrane by Han, J.K., Kim, J., Choi, Y.C., Chang, K.-S., Lee, J., Youn, H.J., Bu, S.D.

“…We report the structure of alumina nanowires (ANWs) synthesized by the chemical etching of an anodic alumina membrane (AAM). The AAM was prepared by the…”
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Influence of mobile space charges on electrical properties of ferroelectric Bi3.5La0.5Ti3O12 thin films by BU, S. D

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Superparamagnetism in Co ion‐implanted epitaxial anatase TiO 2 thin films by Kim, D.H., Yang, J.S., Kim, Y.S., Chang, Y.J., Noh, T.W., Bu, S.D., Kim, Y.‐W., Park, Y.D., Pearton, S.J., Park, J.‐H.

“…Abstract We investigated the magnetic properties of Co doped anatase TiO 2 thin films. To incorporate Co into epitaxial anatase TiO 2 thin films, we implanted…”
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Superparamagnetism in Co ion‐implanted epitaxial anatase TiO2 thin films by Kim, D.H., Yang, J.S., Kim, Y.S., Chang, Y.J., Noh, T.W., Bu, S.D., Kim, Y.‐W., Park, Y.D., Pearton, S.J., Park, J.‐H.

“…We investigated the magnetic properties of Co doped anatase TiO2 thin films. To incorporate Co into epitaxial anatase TiO2 thin films, we implanted them with…”
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Superparamagnetism in Co ion-implanted epitaxial anatase TiO2 thin films by Kim, D.H., Yang, J.S., Kim, Y.S., Chang, Y.J., Noh, T.W., Bu, S.D., Kim, Y.-W., Park, Y.D., Pearton, S.J., Park, J.-H.

“…We investigated the magnetic properties of Co doped anatase TiO2 thin films. To incorporate Co into epitaxial anatase TiO2 thin films, we implanted them with…”
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A new ferroelectric material for use in FRAM: lanthanum-substituted bismuth titanate by Noh, T.W., Park, B.H., Kang, B.S., Bu, S.D., Lee, J.

“…SrBi/sub 2/Ta/sub 2/O/sub 9/ (SBT) thin films have attracted much attention due to their fatigue-free properties for ferroelectric random access memory (FRAM)…”
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