Zobrazeno 1 - 10
of 1 257
pro vyhledávání: '"Watanabe, TaKao"'
Autor:
Tajima, Setsuko, Itoh, Yuhta, Mizutamari, Katsuya, Miyasaka, Shigeki, Nakajima, Masamichi, Sasaki, Nae, Yamaguchi, Shunpei, Harada, Kei-ichi, Watanabe, Takao
Publikováno v:
J. Phys. Soc. Jpn. 93, 103701 (2024)
We studied the temperature dependences of the optical spectra for optimally and underdoped Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10+z}$ single crystals. Similarly to the other cuprates' cases, a gap-like conductivity suppression was observed with reducing the
Externí odkaz:
http://arxiv.org/abs/2408.03080
Autor:
Watanabe, Takao, Kosugi, Kenta, Sasaki, Nae, Yamaguchi, Shunpei, Fujii, Takenori, Hayama, Ken, Kakeya, Itsuhiro, Ito, Toshimitsu
Publikováno v:
Phys. Rev. B 110, 134509 (2024)
The observance of vortex and anti-vortex effects in bulk crystals can prove the existence of phase-disordered superconductivity in the bulk. To gain insights into the mechanisms that govern superconducting transition in copper oxide high-transition t
Externí odkaz:
http://arxiv.org/abs/2405.06272
Autor:
Okujima, Yusuke1 (AUTHOR), Watanabe, Takao1 (AUTHOR) wtakao@m.ehime-u.ac.jp, Ito, Takeshi2 (AUTHOR), Inoue, Yasumichi3 (AUTHOR), Kasai, Yutaka2 (AUTHOR), Imai, Yusuke1 (AUTHOR), Nakamura, Yoshiko1 (AUTHOR), Koizumi, Mitsuhito1 (AUTHOR), Yoshida, Osamu1 (AUTHOR), Tokumoto, Yoshio1 (AUTHOR), Hirooka, Masashi1 (AUTHOR), Abe, Masanori1 (AUTHOR), Kawakami, Ryosuke4 (AUTHOR), Saitou, Takashi4,5 (AUTHOR), Imamura, Takeshi4,5 (AUTHOR), Murakami, Yoshinori2 (AUTHOR), Hiasa, Yoichi1 (AUTHOR)
Publikováno v:
Scientific Reports. 11/14/2024, Vol. 12 Issue 1, p1-14. 14p.
Knowledge of the doping (x)-temperature (T) phase diagram of Fe-based superconductors is crucial in understanding the mechanism of high transition temperature superconductivity. Here, we measured the Se doping dependence of the magnetic susceptibilit
Externí odkaz:
http://arxiv.org/abs/2211.05355
Autor:
Uezono, Yu, Otsuka, Takumi, Hagisawa, Shotaro, Taniguchi, Haruka, Matsukawa, Michiaki, Fujii, Takenori, Watanabe, Takao
Recently, the superconductors' community has witnessed an unsettled debate regarding whether iron-based superconductors, in particular FeSe and FeSe$_{1-x}$S$_x$, are in the Bardeen-Cooper-Shrieffer (BCS) - Bose-Einstein condensation (BEC) crossover
Externí odkaz:
http://arxiv.org/abs/2209.08238
The exponent of repetition of the characteristic Sturmian word whose slope is a quadratic irrational
Autor:
Watanabe, Takao
For an infinite word $x$, Bugeaud and Kim introduced a quantity $\mathrm{rep}(x)$ called the exponent of repetition of $x$. We prove that $\mathrm{rep}(x) = \mathrm{rep}(y)$ holds for a Sturmian word $x$ and every suffix $y$ of $x$. Let $c$ be the ch
Externí odkaz:
http://arxiv.org/abs/2201.06689
Autor:
Harada, Keiichi, Teramoto, Yuki, Usui, Tomohiro, Itaka, Kenji, Fujii, Takenori, Noji, Takashi, Taniguchi, Haruka, Matsukawa, Michiaki, Ishikawa, Hajime, Kindo, Koichi, Dessau, Daniel S., Watanabe, Takao
Publikováno v:
Phys. Rev. B 105, 085131 (2022)
Although phase diagrams can be leveraged to investigate high transition temperature (high-$T_c$) superconductivity, the issue has not been discussed thoroughly. In this study, we elucidate the phase diagram of the overdoped side of high-$T_c$ cuprate
Externí odkaz:
http://arxiv.org/abs/2109.11799
Autor:
Koda, Masahide, Harada, Nahoko, Sato, Naoko, Araki, Tomoko, Honda, Kazuya, Kudo, Takemi, Watanabe, Takao, Suzuki, Miho
Publikováno v:
In The Journal for Nurse Practitioners January 2024 20(1)
Autor:
Watanabe, Takao, Otsuka, Takumi, Hagisawa, Shotaro, Koshika, Yuta, Adachi, Shintaro, Usui, Tomohiro, Sasaki, Nae, Sasaki, Seya, Yamaguchi, Shunpei, Uezono, Yu, Nakanishi, Yoshiki, Yoshizawa, Masahito, Kimura, Shojiro
Publikováno v:
Modern Physics Letters B Vol. 34, Nos. 19 & 20 (2020) 2040051
Among the Fe-based superconductors, Fe$_{1+y}$Te$_{1-x}$Se$_{x}$ is unique in that its crystal structure is the simplest and the electron correlation level is the strongest, and thus it is important to investigate the doping($x$)-temperature ($T$) ph
Externí odkaz:
http://arxiv.org/abs/2005.13866
Autor:
Taniguchi, Haruka, Takahashi, Hidenori, Terui, Akihiro, Sadamitsu, Kensuke, Sato, Yuka, Ito, Michihiro, Nonaka, Katsuhiko, Kobayashi, Satoru, Matsukawa, Michiaki, Suryanarayanan, Ramanathan, Sasaki, Nae, Yamaguchi, Shunpei, Watanabe, Takao
Manganites exhibit various types of electronic phenomena, and these electronic characteristics can be controlled by carrier doping. Herein, we report the dielectric and magnetic properties of electron-doped manganite Ca$_{1-x}$Sr$_x$Mn$_{0.85}$Sb$_{0
Externí odkaz:
http://arxiv.org/abs/2005.08450