M. Nagira
Hiroshima University
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Publication
Featured researches published by M. Nagira.
Journal of the Physical Society of Japan | 2006
Hitoshi Sato; A. Tanaka; Masahiro Sawada; Fumitoshi Iga; K. Tsuji; Masami Tsubota; Masaki Takemura; Koichiro Yaji; M. Nagira; Akio Kimura; Toshiro Takabatake; Hirofumi Namatame; M. Taniguchi
The Ti 3 d electronic structure of Ti 2 O 3 across metal–insulator transition (MIT) has been investigated by means of polarization-dependent soft X-ray absorption spectroscopy (XAS) at the Ti 2 p edge. The XAS spectra exhibit a remarkable linear dichroism (LD) between the polarization vectors of the incident light parallel and perpendicular to the Ti ion pair along the c -axis. LD intensity is significantly reduced at 520 K in the metallic phase in comparison with that at 300 K in the insulating phase, indicating a large change in a 1 g and e g π orbital occupations. The results are qualitatively consistent with a recent theory, where the MIT is due to the change of the 3 d electronic configuration in the Ti pair along the c -axis driven by a change in the t 2 g level splitting relative to the on-site exchange interaction.
Physical Review Letters | 2004
Fumitoshi Iga; Masami Tsubota; Masahiro Sawada; Hong Bin Huang; Souichirou Kura; Masaki Takemura; Koichiro Yaji; M. Nagira; Akio Kimura; Takeo Jo; Toshiro Takabatake; Hirofumi Namatame; M. Taniguchi
Surface Science | 2007
M. Nagira; Masahiro Sawada; M. Higashiguchi; Koichiro Yaji; Tsutomu Moko; Tetsuro Ueno; Yuichi Miura; Kenya Shimada; Akio Kimura; H. Namatame; M. Taniguchi
Surface Science | 2007
M. Nagira; Masahiro Sawada; M. Higashiguchi; Koichiro Yaji; Tsutomu Moko; Tetsuro Ueno; U. Miura; Kenya Shimada; Akio Kimura; Hirofumi Namatame; M. Taniguchi
Physica B-condensed Matter | 2004
Masahiro Sawada; M. Nagira; Koichiro Yaji; Kenya Shimada; Akio Kimura; Kiyotaka Miyoshi; Jun Takeuchi; H. Namatame; M. Taniguchi
Physical Review B | 2007
Koichiro Yaji; Masahiro Sawada; Hirofumi Namatame; Tsutomu Moko; M. Nagira; Tetsuro Ueno; Akio Kimura; M. Taniguchi
Physical Review Letters | 2006
Fumitoshi Iga; Masami Tsubota; Masahiro Sawada; Hong Bin Huang; S. Kura; Masaki Takemura; Koichiro Yaji; M. Nagira; Akio Kimura; Takeo Jo; Toshiro Takabatake; H. Namatame; M. Taniguchi
E-journal of Surface Science and Nanotechnology | 2006
Koichiro Yaji; Masahiro Sawada; M. Nagira; Tsutomu Moko; Tetsuro Ueno; Akio Kimura; Hirofumi Namatame; M. Taniguchi
E-journal of Surface Science and Nanotechnology | 2008
Tetsuro Ueno; M. Nagira; Satoshi Tohoda; Tetsuro Tagashira; Akio Kimura; Masahiro Sawada; Hirofumi Namatame; M. Taniguchi
E-journal of Surface Science and Nanotechnology | 2008
Satoshi Tohoda; M. Nagira; Tetsuro Ueno; Tetsuro Tagashira; Akio Kimura; Masahiro Sawada; Hirofumi Namatame; M. Taniguchi
