Takahiro Urata
Nagoya University
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Publication
Featured researches published by Takahiro Urata.
Physical Review B | 2014
Khuong Kim Huynh; Yoichi Tanabe; Takahiro Urata; Hidetoshi Oguro; Satoshi Heguri; Kazuo Watanabe; Katsumi Tanigaki
An SDW antiferromagnetic (SDW-AF) low temperature phase transition is generally observe and the AF spin fluctuations are considered to play an important role for the superconductivity paring mechanism in FeAs superconductors. However, a similar magnetic phase transition is not observed in FeSe superconductors, which has caused considerable discussion. We report on the intrinsic electronic states of FeSe as elucidated by transport measurements under magnetic fields using a high quality single crystal. A mobility spectrum analysis, an ab initio method that does not make assumptions on the transport parameters in a multicarrier system, provides very import and clear evidence that another hidden order, most likely the symmetry broken from the tetragonal C4 symmetry to the C2 symmetry nematicity associated with the selective d-orbital splitting, exists in the case of superconducting FeSe other than the AF magnetic order spin fluctuations. The intrinsic low temperature phase in FeSe is in the almost compensated semimetallic states but is additionally accompanied by Dirac cone like ultrafast electrons
Physical Review B | 2017
G. N. Phan; K. Nakayama; Katsuaki Sugawara; T. Sato; Takahiro Urata; Yoichi Tanabe; Katsumi Tanigaki; Fuyuki Nabeshima; Yoshinori Imai; Atsutaka Maeda; Takashi Takahashi
\sim
Physical Review B | 2011
Yoichi Tanabe; Khuong Kim Huynh; Satoshi Heguri; Gang Mu; Takahiro Urata; Jingtao Xu; Ryo Nouchi; N. Mitoma; Katsumi Tanigaki
10
Physical Review B | 2016
Takahiro Urata; Yoichi Tanabe; Khuong Kim Huynh; Youichi Yamakawa; Hiroshi Kontani; Katsumi Tanigaki
^4
Physical Review B | 2015
Matevž Majcen Hrovat; P. Jeglič; M. Klanjsek; Takehiro Hatakeda; Takashi Noji; Yoichi Tanabe; Takahiro Urata; Khuong Kim Huynh; Yoji Koike; Katsumi Tanigaki; Denis Arčon
cm
Physical Review B | 2014
Takahiro Urata; Yoichi Tanabe; Khuong Kim Huynh; Hidetoshi Oguro; Kazuo Watanabe; Satoshi Heguri; Katsumi Tanigaki
^2
Physical Review B | 2012
Yoichi Tanabe; Khuong Kim Huynh; Takahiro Urata; Satoshi Heguri; Gang Mu; J. T. Xu; Ryo Nouchi; Katsumi Tanigaki
(VS)
Physical Review B | 2015
Takahiro Urata; Yoichi Tanabe; Khuong Kim Huynh; Satoshi Heguri; Hidetoshi Oguro; Kazuo Watanabe; Katsumi Tanigaki
^{-1}
Physical Review Letters | 2014
K. Nakayama; Yasunari Miyata; G. N. Phan; Takafumi Sato; Yoichi Tanabe; Takahiro Urata; Katsumi Tanigaki; Takashi Takahashi
as minority carriers.
Physical Review B | 2018
N. Kawaguchi; Takahiro Urata; Takafumi Hatano; Kazumasa Iida; Hiroshi Ikuta
One of central issues in iron-based superconductors is the role of structural change to the superconducting transition temperature (