Search Results - "Koyama, T"

Chiral Surface Twists and Skyrmion Stability in Nanolayers of Cubic Helimagnets by Leonov, A O, Togawa, Y, Monchesky, T L, Bogdanov, A N, Kishine, J, Kousaka, Y, Miyagawa, M, Koyama, T, Akimitsu, J, Koyama, Ts, Harada, K, Mori, S, McGrouther, D, Lamb, R, Krajnak, M, McVitie, S, Stamps, R L, Inoue, K

“…Theoretical analysis and Lorentz transmission electron microscopy (LTEM) investigations in an FeGe wedge demonstrate that chiral twists arising near the…”
Get full text

Chiral magnetic soliton lattice on a chiral helimagnet by Togawa, Y, Koyama, T, Takayanagi, K, Mori, S, Kousaka, Y, Akimitsu, J, Nishihara, S, Inoue, K, Ovchinnikov, A S, Kishine, J

“…Using Lorenz microscopy and small-angle electron diffraction, we directly present that the chiral magnetic soliton lattice (CSL) continuously evolves from a…”
Get full text

Control of magnetic anisotropy in a Co thin film on a flexible substrate by applying biaxial tensile strain by Matsumoto, H., Ota, S., Koyama, T., Chiba, D.

“…We have demonstrated a reversible control of magnetic anisotropy in Pt/Co and Pd/Co structures formed on a polyethylene naphthalate flexible substrate by…”
Get full text

Formation mechanism of Tb-rich shell in grain boundary diffusion processed Nd–Fe–B sintered magnets by Kim, Tae-Hoon, Sasaki, T.T., Koyama, T., Fujikawa, Y., Miwa, M., Enokido, Y., Ohkubo, T., Hono, K.

“…We propose a new mechanism for the formation of Tb-rich shell in the Nd–Fe–B sintered magnet that was subjected to the grain boundary diffusion (GBD) process…”
Get full text

Magnetic soliton confinement and discretization effects arising from macroscopic coherence in a chiral spin soliton lattice by Togawa, Y., Koyama, T., Nishimori, Y., Matsumoto, Y., McVitie, S., McGrouther, D., Stamps, R. L., Kousaka, Y., Akimitsu, J., Nishihara, S., Inoue, K., Bostrem, I. G., Sinitsyn, Vl. E., Ovchinnikov, A. S., Kishine, J.

Get full text

Observation of the intrinsic pinning of a magnetic domain wall in a ferromagnetic nanowire by Ono, T, Koyama, T, Chiba, D, Ueda, K, Kondou, K, Tanigawa, H, Fukami, S, Suzuki, T, Ohshima, N, Ishiwata, N, Nakatani, Y, Kobayashi, K

“…The spin transfer torque is essential for electrical magnetization switching. When a magnetic domain wall is driven by an electric current through an adiabatic…”
Get full text

Nanofocusing of X-ray free-electron laser using wavefront-corrected multilayer focusing mirrors by Matsuyama, S., Inoue, T., Yamada, J., Kim, J., Yumoto, H., Inubushi, Y., Osaka, T., Inoue, I., Koyama, T., Tono, K., Ohashi, H., Yabashi, M., Ishikawa, T., Yamauchi, K.

“…A method of fabricating multilayer focusing mirrors that can focus X-rays down to 10 nm or less was established in this study. The wavefront aberration induced…”
Get full text

Three‐Dimensional Resistivity Structure of Iwo‐Yama Volcano, Kirishima Volcanic Complex, Japan: Relationship to Shallow Seismicity, Surface Uplift, and a Small Phreatic Eruption by Tsukamoto, K., Aizawa, K., Chiba, K., Kanda, W., Uyeshima, M., Koyama, T., Utsugi, M., Seki, K., Kishita, T.

“…Iwo‐yama volcano, part of the Kirishima Volcanic Complex, has recently shown signs of unrest. We conducted a hypocenter relocation of shallow earthquakes and…”
Get full text

A review of separation processes proposed for advanced fuel cycles based on technology readiness level assessments by Baron, P., Cornet, S.M., Collins, E.D., DeAngelis, G., Del Cul, G., Fedorov, Yu, Glatz, J.P., Ignatiev, V., Inoue, T., Khaperskaya, A., Kim, I.T., Kormilitsyn, M., Koyama, T., Law, J.D., Lee, H.S., Minato, K., Morita, Y., Uhlíř, J., Warin, D., Taylor, R.J.

“…The results of an international review of separation processes for spent nuclear fuel (SNF) recycling in future closed fuel cycles are reported. This study was…”
Get full text

Fundamental study on the vaporization of cesium and iodine dissolved in LiF-NaF-KF molten salt by Sekiguchi, Y., Uozumi, K., Koyama, T., Terai, T.

“…As a basic study related to a severe accident of Molten Salt Reactor (MSR), the equilibrium vapor pressures over LiF-NaF-KF eutectic salt (46.5–11.5–42.0 mol%,…”
Get full text

Modulation of the magnetic domain size induced by an electric field by Ando, F., Kakizakai, H., Koyama, T., Yamada, K., Kawaguchi, M., Kim, S., Kim, K.-J., Moriyama, T., Chiba, D., Ono, T.

“…The electric field (EF) effect on the magnetic domain structure of a Pt/Co system was studied, where an EF was applied to the top surface of the Co layer. The…”
Get full text

Quantitative autistic traits ascertained in a national survey of 22 529 Japanese schoolchildren by Kamio, Y., Inada, N., Moriwaki, A., Kuroda, M., Koyama, T., Tsujii, H., Kawakubo, Y., Kuwabara, H., Tsuchiya, K. J., Uno, Y., Constantino, J. N.

“…Objective Recent epidemiologic studies worldwide have documented a rise in prevalence rates for autism spectrum disorders (ASD). Broadening of diagnostic…”
Get full text

Flexible CoFeB/MgO-based magnetic tunnel junctions annealed at high temperature (≥350 °C) by Ota, S., Ando, A., Sekitani, T., Koyama, T., Chiba, D.

“…This study investigates the effect of high-temperature (350–500 °C) annealing on CoFeB/MgO/CoFeB magnetic tunnel junctions (MTJs) directly formed on a flexible…”
Get full text

Determination of effective field induced by spin-orbit torque using magnetic domain wall creep in Pt/Co structure by Koyama, T., Chiba, D.

Get full text

Spin–orbit torque generated by spin–orbit precession effect in Py/Pt/Co tri-layer structure by Hibino, Y., Hasegawa, K., Koyama, T., Chiba, D.

“…In this report, current-induced spin–orbit torques (SOTs) in a permalloy (Py)/Pt/Co tri-layer system are investigated. In addition to the conventional SOTs…”
Get full text

Peculiar temperature dependence of electric-field effect on magnetic anisotropy in Co/Pd/MgO system by Hibino, Y., Koyama, T., Obinata, A., Hirai, T., Ota, S., Miwa, K., Ono, S., Matsukura, F., Ohno, H., Chiba, D.

“…We report on the temperature dependence of the magnetic anisotropy in Co/Pd/MgO system, in which magnetic moment in Pd is induced by the magnetic proximity…”
Get full text

Electric-field effect on magnetic moments in Co ultra-thin films deposited on Pt by Obinata, A., Koyama, T., Matsukura, F., Nakamura, K., Chiba, D.

“…This study investigates the electric-field effect on magnetic moments in perpendicularly magnetized Co ultra-thin films on a Pt underlayer. By applying…”
Get full text

Element Selectivity in Second-Harmonic Generation of GaFeO3 by a Soft-X-Ray Free-Electron Laser by Yamamoto, Sh, Omi, T, Akai, H, Kubota, Y, Takahashi, Y, Suzuki, Y, Hirata, Y, Yamamoto, K, Yukawa, R, Horiba, K, Yumoto, H, Koyama, T, Ohashi, H, Owada, S, Tono, K, Yabashi, M, Shigemasa, E, Yamamoto, S, Kotsugi, M, Wadati, H, Kumigashira, H, Arima, T, Shin, S, Matsuda, I

“…Nonlinear optical frequency conversion has been challenged to move down to the extreme ultraviolet and x-ray region. However, the extremely low signals have…”
Get full text

A numerical study on differences in using Navier–Stokes and Reynolds equations for modeling the fluid flow and particle transport in single rock fractures with shear by Koyama, T., Neretnieks, I., Jing, L.

“…The study on fluid flow and transport processes of rock fractures in most practical applications involves two fundamental issues: the validity of Reynolds…”
Get full text

Long-term stability of partial nitritation of swine wastewater digester liquor and its subsequent treatment by Anammox by Yamamoto, Taichi, Takaki, Keita, Koyama, Toichiro, Furukawa, Kenji

“…Partial nitritation using inhibition of free ammonia and free nitric acid is an effective technique for the treatment of high concentrations of ammonium in…”
Get full text