Zobrazeno 1 - 10
of 263
pro vyhledávání: '"Okuyama D"'
Autor:
Okuyama, D., Bleuel, M., Ye, Q., Krzywon, J., Nagaosa, N., Kikkawa, A., Taguchi, Y., Tokura, Y., Reim, J. D., Nambu, Y., Sato, T. J.
Lattice formation of swirling textures is ubiquitous in solid-state materials, such as a magnetic skyrmion lattice in chiral magnets. In the magnetic skyrmion lattices, their moving states and dynamics under external perturbations are still unreveale
Externí odkaz:
http://arxiv.org/abs/2404.17505
Autor:
Okuyama, D., Yamauchi, K., Sakai, H., Taguchi, Y., Tokura, Y., Sugimoto, K., Sato, T. J., Oguchi, T.
Publikováno v:
Phys. Rev. Research 2, 033038 (2020)
We investigate the crystal structure in multiferroic tetragonal perovskite Sr$_{1/2}$Ba$_{1/2}$MnO$_3$ with high accuracy of the order of 10$^{-3}$ Angstrom for an atomic displacement. The large atomic displacement for Mn ion from the centerosymmetri
Externí odkaz:
http://arxiv.org/abs/2002.02198
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 October 2023 584
The control of the stoichiometry of Li$_{1+x}$Zn$_{2-y}$Mo$_3$O$_8$ was achieved by the solid-state-reaction. We found that the best sample that has the chemical composition Li$_{0.95(4)}$Zn$_{1.92(8)}$Mo$_3$O$_8$ was obtained from the starting nomin
Externí odkaz:
http://arxiv.org/abs/1901.02171
Akademický článek
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Autor:
Okuyama, D., Bleuel, M., White, J. S., Ye, Q., Krzywon, J., Nagy, G., Im, Z. Q., Zivkovic, I., Bartkowiak, M., Ronnow, H. M., Hoshino, S., Iwasaki, J., Nagaosa, N., Kikkawa, A., Taguchi, Y., Tokura, Y., Higashi, D., Reim, J. D., Nambu, Y., Sato, T. J.
Publikováno v:
Commun. Phys. 2, 79 (2019)
Using small-angle neutron scattering (SANS), we investigate the deformation of the magnetic skyrmion lattice in bulk single-crystalline MnSi under electric current flow. A significant broadening of the skyrmion-lattice-reflection peaks was observed i
Externí odkaz:
http://arxiv.org/abs/1807.07388
Autor:
Shiomi, Y., Takashima, R., Okuyama, D., Gitgeatpong, G., Piyawongwatthana, P., Matan, K., Sato, T. J., Saitoh, E.
Publikováno v:
Phys. Rev. B 96, 180414 (2017)
We have studied the longitudinal spin Seebeck effect in a polar antiferromagnet $\alpha$-Cu$_{2}$V$_{2}$O$_{7}$ in contact with a Pt film. Below the antiferromagnetic transition temperature of $\alpha$-Cu$_{2}$V$_{2}$O$_{7}$, spin Seebeck voltages wh
Externí odkaz:
http://arxiv.org/abs/1709.06330
Autor:
Chakraverty, S., Ohtomo, A., Okuyama, D., Saito, M., Okude, M., Kumai, R., Arima, T., Tokura, Y., Tsukimoto, S., Ikuhara, Y., Kawasaki, M.
We report on atomic ordering of B-site transition-metals and magnetic properties of epitaxial La2CrFeO6 double-perovskite films grown by pulsed-laser deposition under various conditions. The highest ordered sample exhibited a fraction of antisite-dis
Externí odkaz:
http://arxiv.org/abs/1107.5891
Autor:
Ishiwata, S., Tokunaga, M., Kaneko, Y., Okuyama, D., Tokunaga, Y., Wakimoto, S., Kakurai, K., Arima, T., Taguchi, Y., Tokura, Y.
A helical spin texture is of great current interest for a host of novel spin-dependent transport phenomena. We report a rich variety of nontrivial, helimagnetic phases in the simple cubic perovskite SrFeO3 under magnetic fields up to 42 T. Magnetic a
Externí odkaz:
http://arxiv.org/abs/1107.5184
Autor:
Okuyama, D., Ishiwata, S., Takahashi, Y., Yamauchi, K., Picozzi, S., Sugimoto, K., Sakai, H., Takata, M., Shimano, R., Taguchi, Y., Arima, T., Tokura, Y.
Publikováno v:
Phys. Rev. B 84, 054440 (2011)
Magnetically-driven ferroelectric atomic displacements of the order of 10$^{-3} Angstrom have been observed in orthorhombic (perovskite like) YMnO$_3$ by a single-crystal synchrotron x-ray diffraction. The refined polar structure shows the characteri
Externí odkaz:
http://arxiv.org/abs/1107.2467