K. Yoshikawa | Researchain

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Featured researches published by K. Yoshikawa.

Journal of the Physical Society of Japan | 2007

X-ray Absorption and Inverse Photoemission Study of Y1-xCaxTiO3

M. Arita; Hitoshi Sato; Masayuki Higashi; K. Yoshikawa; Kenya Shimada; Masahiro Sawada; Yuko Ueda; Hirofumi Namatame; M. Taniguchi; Sin-Ichi Fujiomori; Y. Saitoh; Masami Tsubota; Fumitoshi Iga; T. Takabatake

We have performed the O 1 s x-ray absorption (XAS) and resonant inverse photoemission spectroscopy (RIPES) in Mott insulator YTiO 3 , band insulator CaTiO 3 and Y 0.61 Ca 0.39 TiO 3 with a metal–in...

Physical Review Letters | 2004

Valence Transition of YbInCu4 Observed in Hard X-Ray Photoemission Spectra

Hitoshi Sato; Kenya Shimada; M. Arita; Koichi Hiraoka; K. Kojima; Yukiharu Takeda; K. Yoshikawa; Masahiro Sawada; Masashi Nakatake; Hirofumi Namatame; M. Taniguchi; Yasutaka Takata; Eiji Ikenaga; Shik Shin; Keisuke Kobayashi; Kenji Tamasaku; Yoshinori Nishino; D. Miwa; Makina Yabashi; Tetsuya Ishikawa

Physical Review B | 2004

Soft-x-ray high-resolution photoemission study on the valence transitions inYbInCu4

Hitoshi Sato; K. Yoshikawa; Koichi Hiraoka; M. Arita; Koji Fujimoto; K. Kojima; Takayuki Muro; Y. Saitoh; Akira Sekiyama; Shigemasa Suga; M. Taniguchi

Physical Review B | 2007

Unoccupied electronic structure of Y1-xCaxTiO3 investigated by inverse photoemission spectroscopy

M. Arita; Hitoshi Sato; Masayuki Higashi; K. Yoshikawa; Kenya Shimada; Masashi Nakatake; Yuko Ueda; Hirofumi Namatame; M. Taniguchi; Masami Tsubota; Fumitoshi Iga; Toshiro Takabatake

Journal of Electron Spectroscopy and Related Phenomena | 2007

Ti 2p soft X-ray emission spectroscopy of Ti2O3

Hitoshi Sato; K. Tsuji; K. Yoshikawa; Yasuhisa Tezuka; S. Nishimoto; Masayuki Higashi; Fumitoshi Iga; Masami Tsubota; Masaki Takemura; T. Takabatake; M. Taniguchi

Physical Review B | 2005

Low-energy excited photoemission study of the valence transition of Yb In Cu 4

K. Yoshikawa; Hitoshi Sato; M. Arita; Yukiharu Takeda; Koichi Hiraoka; K. Kojima; Kenichiro Tsuji; Hirofumi Namatame; M. Taniguchi

Physica B-condensed Matter | 2004

Electronic states near the Fermi edge of YbInCu4

K. Yoshikawa; H. Sato; K. Tsuji; M. Arita; Yukiharu Takeda; H. Namatame; M. Taniguchi; Koichi Hiraoka; K. Kojima

Physica B-condensed Matter | 2004

Hard X-ray photoemission spectroscopy of YbInCu4

Hitoshi Sato; Kenya Shimada; M. Arita; Yukiharu Takeda; Masahiro Sawada; Masashi Nakatake; K. Yoshikawa; H. Namatame; Y. Takata; Keisuke Kobayashi; Eiji Ikenaga; Shik Shin; Makina Yabashi; D. Miwa; Yoshinori Nishino; Kenji Tamasaku; Tetsuya Ishikawa; Koichi Hiraoka; K. Kojima; M. Taniguchi

Journal of Electron Spectroscopy and Related Phenomena | 2005

Electronic structure of YbXCu4 (X = Cd, Mg, Zn) investigated by means of low-energy excited high-resolution photoemission spectroscopy

K. Yoshikawa; H. Sato; M. Arita; K. Tsuji; Yukiharu Takeda; H. Namatame; M. Taniguchi; Koichi Hiraoka; K. Kojima

Physica B-condensed Matter | 2004

Spin and orbital electronic states of Sm 4f electrons in (Sm, Gd)Al2

Shan Qiao; Akio Kimura; Hiromichi Adachi; T. Kambe; K. Yoshikawa; Koichiro Yaji; Chiyuki Hirai; Hitoshi Sato; Yukiharu Takeda; H. Namatame; M. Taniguchi; A. Tanaka; Takayuki Muro; S. Imada; S. Suga

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