Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where J. Okamoto is active.

Publication


Featured researches published by J. Okamoto.


Physical Review Letters | 2005

Orbital symmetry and electron correlation in NaxCoO2.

W. B. Wu; D. J. Huang; J. Okamoto; A. Tanaka; H.-J. Lin; F. C. Chou; A. Fujimori; Chuangtian Chen

Measurements of polarization-dependent soft x-ray absorption reveal that the electronic states determining the low-energy excitations of


Physical Review Letters | 2008

Nature of magnetic coupling between Mn ions in As-grown Ga1-xMnxAs studied by X-ray magnetic circular dichroism.

Yukiharu Takeda; Mika Kobayashi; Tetsuo Okane; Takuo Ohkochi; J. Okamoto; Y. Saitoh; Keisuke Kobayashi; Hiroshi Yamagami; A. Fujimori; A. Tanaka; J. Okabayashi; M. Oshima; Shinobu Ohya; Pham Nam Hai; Masaaki Tanaka

{\mathrm{Na}}_{x}{\mathrm{CoO}}_{2}


Scientific Reports | 2016

Raman and fluorescence characteristics of resonant inelastic X-ray scattering from doped superconducting cuprates

H. Y. Huang; Chunjing Jia; Zhuoyu Chen; Krzysztof Wohlfeld; Brian Moritz; T. P. Devereaux; W. B. Wu; J. Okamoto; W. S. Lee; Makoto Hashimoto; Yu He; Zhi-Xun Shen; Yoshiyuki Yoshida; H. Eisaki; Chung-Yu Mou; Chuangtian Chen; D. J. Huang

have predominantly


Journal of the Physical Society of Japan | 2010

Magnetic Transitions of Multiferroic Frustrated Magnets Revealed by Resonant Soft X-ray Magnetic Scattering

D. J. Huang; J. Okamoto; Shih-Wen Huang; Chung-Yu Mou

{a}_{1g}


SYNCHROTRON RADIATION INSTRUMENTATION: Eighth International Conference on Synchrotron Radiation Instrumentation | 2004

Magnetic Circular X‐ray Dichroism Study of Paramagnetic and Anti‐Ferromagnetic States in SrFeO3 Using a 10‐T Superconducting Magnet

J. Okamoto; K. Mamiya; S.‐I. Fujimori; Tetsuo Okane; Y. Saitoh; Yasuji Muramatsu; A. Fujimori; Shintaro Ishiwata; M. Takano

symmetry with significant O


Journal of the Physical Society of Japan | 2008

Soft X-ray Magnetic Circular Dichroism Study of Uranium Monochalcogenides at Uranium N4,5 Absorption Edges

Tetsuo Okane; Yukiharu Takeda; J. Okamoto; Kazutoshi Mamiya; Takuo Ohkochi; Shin-ichi Fujimori; Y. Saitoh; Hiroshi Yamagami; Atsushi Fujimori; Akira Ochiai; A. Tanaka

2p


Physical Review B | 2007

Soft x-ray magnetic circular dichroism study of Ca(1-x)Sr(x)RuO(3) across the ferromagnetic quantum phase transition

J. Okamoto; Tetsuo Okane; Y. Saitoh; Kota Terai; S.-I. Fujimori; Yasuji Muramatsu; Kenji Yoshii; K. Mamiya; Tsuneharu Koide; A. Fujimori; Zhong Fang; Yasuo Takeda; M. Takano

character. In contrast to the prediction of band theory, doping-dependent O


Journal of the Physical Society of Japan | 2006

Soft X-ray Absorption Magnetic Circular Dichroism Study of Ferromagnetic Superconductor UGe2

Tetsuo Okane; J. Okamoto; Kazutoshi Mamiya; Shin Ichi Fujimori; Yukiharu Takeda; Y. Saitoh; Yasuji Muramatsu; Atsushi Fujimori; Yoshinori Haga; Etsuji Yamamoto; A. Tanaka; Tetsuo Honma; Yoshihiko Inada; Yoshichika Onuki

1s


Physical Review B | 2015

X-ray spectroscopic study of BaFeO3 thin films: An Fe4+ ferromagnetic insulator

T. Tsuyama; Tomoyuki Matsuda; S. Chakraverty; J. Okamoto; Eiji Ikenaga; A. Tanaka; T. Mizokawa; Harold Y. Hwang; Y. Tokura; H. Wadati

x-ray absorption shows a large transfer of spectral weight, providing spectral evidence for strong electron correlations of the layered cobaltates. We also found that


Physical Review B | 2015

X-ray spectroscopic study of BaFeO 3 thin films: An Fe 4 + ferromagnetic insulator

T. Tsuyama; Tomoyuki Matsuda; S. Chakraverty; J. Okamoto; Eiji Ikenaga; A. Tanaka; T. Mizokawa; Harold Y. Hwang; Y. Tokura; H. Wadati

{\mathrm{Na}}_{x}{\mathrm{CoO}}_{2}

Collaboration


Dive into the J. Okamoto's collaboration.

Top Co-Authors

Avatar

Tetsuo Okane

Japan Atomic Energy Agency

View shared research outputs
Top Co-Authors

Avatar

D. J. Huang

National Chiao Tung University

View shared research outputs
Top Co-Authors

Avatar

Chuangtian Chen

Chinese Academy of Sciences

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Y. Saitoh

Japan Atomic Energy Agency

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

S.-I. Fujimori

Japan Atomic Energy Research Institute

View shared research outputs
Top Co-Authors

Avatar

W. B. Wu

National Chiao Tung University

View shared research outputs
Researchain Logo
Decentralizing Knowledge