Zobrazeno 1 - 10
of 1 335
pro vyhledávání: '"Okamoto, J"'
Autor:
Okamoto, J., Shibata, G., Posonov, Yu. S., Hayashi, H., Yamaura, K., Huang, H. Y., Singh, A., Chen, C. T., Tanaka, A., Streltsov, S. V., Huang, D. J., Fujimori, A.
Transition-metal ions with $5d^2$ electronic configuration in a cubic crystal field are prone to have a vanishing dipolar magnetic moment but finite higher-order multipolar moments, and they are expected to exhibit exotic physical properties. Through
Externí odkaz:
http://arxiv.org/abs/2412.12708
Autor:
Singh, A., Huang, H. Y., Xie, J. D., Okamoto, J., Chen, C. T., Watanabe, T., Fujimori, A., Imada, M., Huang, D. J.
Publikováno v:
Nature Communications volume 13, Article number: 7906 (2022)
Electron quasiparticles play a crucial role in simplifying the description of many-body physics in solids with surprising success. Conventional Landau's Fermi-liquid and quasiparticle theories for high-temperature superconducting cuprates have, howev
Externí odkaz:
http://arxiv.org/abs/2207.12352
Autor:
Suzuki, H., Zhao, G. Q., Okamoto, J., Sakamoto, S., Chen, Z. -Y., Nonaka, Y., Shibata, G., Zhao, K., Chen, B. J., Wu, W. -B., Chang, F. -H., Lin, H. -J., Chen, C. -T., Tanaka, A., Kobayashi, M., Gu, Bo, Maekawa, S., Uemura, Y. J., Jin, C. Q., Huang, D. J., Fujimori, A.
Publikováno v:
J. Phys. Soc. Jpn. 91, 064710 (2022)
The magnetic properties and the electronic excitations of the new diluted magnetic semiconductor Ba$_{1-x}$K$_{x}$(Zn$_{1-y}$Mn$_{y}$)$_{2}$As$_{2}$ have been studied by x-ray magnetic circular dichroism (XMCD) and resonant inelastic x-ray scattering
Externí odkaz:
http://arxiv.org/abs/2201.13061
Autor:
Huang, H. Y., Singh, A., Mou, C. Y., Johnston, S., Kemper, A. F., Brink, J. van den, Chen, P. J., Lee, T. K., Okamoto, J., Chu, Y. Y., Li, J. H., Komiya, S., Komarek, A. C., Fujimori, A., Chen, C. T., Huang, D. J.
Publikováno v:
Phys. Rev. X 11, 041038 (2021)
Quantum phase transitions play an important role in shaping the phase diagram of high-temperature cuprate superconductors. These cuprates possess intertwined orders which interact strongly with superconductivity. However, the evidence for the quantum
Externí odkaz:
http://arxiv.org/abs/2108.11425
Autor:
Singh, A., Huang, H. Y., Lane, Christopher, Li, J. H., Okamoto, J., Komiya, S., Markiewicz, Robert S., Bansil, Arun, Fujimori, A., Chen, C. T., Huang, D. J.
Publikováno v:
Phys. Rev. B 105, 235105 2022
The superconductivity of cuprates, which has been a mystery ever since its discovery decades ago, is created through doping electrons or holes into a Mott insulator. There, however, exists an inherent electron-hole asymmetry in cuprates. The layered
Externí odkaz:
http://arxiv.org/abs/2006.13424
Autor:
Singh, A., Huang, H. Y., Chu, Y. Y., Hua, C. Y., Lin, S. W., Fung, H. S., Shiu, H. W., Chang, J., Li, J. H., Okamoto, J., Chiu, C. C., Chang, C. H., Wu, W. B., Perng, S. Y., Chung, S. C., Kao, K. Y., Yeh, S. C., Chao, H. Y., Chen, J. H., Huang, D. J., Chen, C. T.
We report on the development of a high-resolution and highly efficient beamline for soft-X-ray resonant inelastic X-ray scattering (RIXS) located at Taiwan Photon Source. This beamline adopts an optical design that uses an active grating monochromato
Externí odkaz:
http://arxiv.org/abs/2006.12795
Autor:
Howard, K. B., Garg, U., Itoh, M., Akimune, H., Fujiwara, M., Furuno, T., Gupta, Y. K., Harakeh, M. N., Inaba, K., Ishibashi, Y., Karasudani, K., Kawabata, T., Kohda, A., Matsuda, Y., Murata, M., Nakamura, S., Okamoto, J., Ota, S., Piekarewicz, J., Sakaue, A., Senyigit, M., Tsumura, M., Yang, Y.
Publikováno v:
Phys. Lett. B 807 (2020) 135608
"Why are the tin isotopes soft?" has remained, for the past decade, an open problem in nuclear structure physics: models which reproduce the isoscalar giant monopole resonance (ISGMR) in the "doubly-closed shell" nuclei, $^{90}$Zr and $^{208}$Pb, ove
Externí odkaz:
http://arxiv.org/abs/2005.10172
Autor:
Okamoto, J., Chainani, A., Chen, Z. Y., Huang, H. Y., Singh, A., Sasagawa, T., Khomskii, D. I., Fujimori, A., Chen, C. T., Huang, D. J.
Publikováno v:
Phys. Rev. B 104, 054417 (2021)
We present X-ray spectroscopic evidence for the evolution of valence-specific spin states and tetragonal distortions in single-layer cobaltates. Measurements of Co $L_3$-edge resonant inelastic X-ray scattering reveal the $t_{2g}$ electronic structur
Externí odkaz:
http://arxiv.org/abs/2001.05194
Autor:
Tran, D. T., Terashima, S., Ong, H. J., Hirakawa, K., Matsuda, Y., Aoi, N., Harakeh, M. N., Itoh, M., Kawabata, T., Kohda, A., Matsumoto, S. Y., Nishi, T., Okamoto, J., Tanihata, I.
We have constructed and tested a novel plastic-scintillator-based solid-state active proton target for use in nuclear spectroscopic studies with nuclear reactions induced by an ion beam in inverse kinematics. The active target system, named Stack Str
Externí odkaz:
http://arxiv.org/abs/1911.07640
Autor:
Tomiyasu, K., Okamoto, J., Huang, H. Y., Chen, Z. Y., Sinaga, E. P., Wu, W. B., Chu, Y. Y., Singh, A., Wang, R. -P., de Groot, F. M. F., Chainani, A., Ishihara, S., Chen, C. T., Huang, D. J.
Publikováno v:
Phys. Rev. Lett. 119, 196402 (2017)
We carried out temperature-dependent (20 - 550 K) measurements of resonant inelastic X-ray scattering on LaCoO$_3$ to investigate the evolution of its electronic structure across the spin-state crossover. In combination with charge-transfer multiplet
Externí odkaz:
http://arxiv.org/abs/1708.04417