Zobrazeno 1 - 10
of 202
pro vyhledávání: '"Tajima, Setsuko"'
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
Role of Vanadium-Oxide Layer in Electronic State of Sr$_2$VFeAsO$_{3-\delta}$ with Oxygen Deficiency
Autor:
Nakajima, Masamichi, Yokota, Hiroaki, Wakimura, Taihei, Takeuchi, Tetsuya, Nakamura, Koya, Yashima, Mitsuharu, Mukuda, Hidekazu, Miyasaka, Shigeki, Tajima, Setsuko
Publikováno v:
J. Phys. Soc. Jpn. 93, 054711 (2024)
Iron-based superconductor Sr$_2$VFeAsO$_3$ is composed of alternate stacking of a superconducting FeAs layer and an insulating vanadium-oxide layer with a perovskite-type structure. Electronic orders stemming from the spin and orbital degrees of free
Externí odkaz:
http://arxiv.org/abs/2405.05893
Autor:
Katsumi, Kota, Nishida, Morihiko, Kaiser, Stefan, Miyasaka, Shigeki, Tajima, Setsuko, Shimano, Ryo
Publikováno v:
Physical Review B 107, 214506 (2023)
Recent observation of the light-induced superconducting (SC)-like transient response in the $c$-axis optical conductivity far above the SC transition temperature $T_{\mathrm{c}}$ in underdoped YBa$_2$Cu$_3$O$_y$ (YBCO) has attracted great attention i
Externí odkaz:
http://arxiv.org/abs/2209.01633
Autor:
Oh, Dongjin, Song, Dongjoon, Kim, Younsik, Miyasaka, Shigeki, Tajima, Setsuko, Bang, Yunkyu, Park, Seung Ryong, Kim, Changyoung
We performed temperature- and doping-dependent high-resolution Raman spectroscopy experiments on YBa$_2$Cu$_3$O$_{7-\delta}$ to study $B$$_{\rm 1g}$ phonons. The temperature dependence of the real part of the phonon self-energy shows a distinct kink
Externí odkaz:
http://arxiv.org/abs/2107.00891
Publikováno v:
Phys. Rev. B 97, 094511 (2018)
We investigated the out-of-plane transport properties of parent and chemically substituted BaFe$_{2}$As$_{2}$ for various types of substitution. Based on the studies of Hall coefficient and chemical-substitution effect, we have clarified the origin f
Externí odkaz:
http://arxiv.org/abs/2103.09700
Autor:
Adachi, Toru, Ideta, Shinichiro, Tin, Zi How, Usui, Hidetomo, Tanaka, Kiyohisa, Miyasaka, Shigeki, Tajima, Setsuko
Publikováno v:
J. Phys. Soc. Jpn. 88, 084701 (2019)
We have investigated the electronic structure of $\mathrm{Sr}_{1-y}\mathrm{Ca}_{y}\mathrm{Fe_{2}}(\mathrm{As}_{1-x}\mathrm{P}_{x}\mathrm{)_{2}}$ ($x$ = 0.25, $y$ = 0.08) by means of angle-resolved photoemission spectroscopy. From the comparison with
Externí odkaz:
http://arxiv.org/abs/2001.09241
Autor:
Murai, Naoki, Fukuda, Tatsuo, Nakajima, Masamichi, Kawamura, Mitsuaki, Ishikawa, Daisuke, Tajima, Setsuko, Baron, Alfred Q. R.
Publikováno v:
Phys. Rev. B 101, 035126 (2020)
We report an inelastic x-ray scattering investigation of phonons in FeSe superconductor. Comparing the experimental phonon dispersion with density functional theory (DFT) calculations in the non-magnetic state, we found a significant disagreement bet
Externí odkaz:
http://arxiv.org/abs/1912.09384
We discuss the characteristic features of triple Cu-O2 layer cuprates superconductors, by comparing those of single and double layer cuprates superconductors. After a brief introduction to multilayer cuprates and their characteristic properties such
Externí odkaz:
http://arxiv.org/abs/1909.00602
Autor:
Tanaka, Kiyohisa, Hieu, Nguyen Trung, Vincini, Giulio, Masui, Takahiko, Miyasaka, Shigeki, Tajima, Setsuko, Sasagawa, Takao
Publikováno v:
J. Phys. Soc. Jpn. 88, 044710 (2019)
Both electronic Raman scattering (ERS) and angle-resolved photoemission spectra (ARPES) revealed two energy scales for the gap in different momentum spaces in the cuprates. However, the interpretations were different, and the gap values were also dif
Externí odkaz:
http://arxiv.org/abs/1903.00594
Publikováno v:
Journal of the Physical Society of Japan 86, 023701 (2017)
A precursor of superconductivity has been searched in the in-plane optical spectra of underdoped YBa$_2$Cu$_3$O$_y$, in which the previous $c$-axis optical spectra showed the presence of superconducting carriers at a temperature far above $T_c$ [Uyku
Externí odkaz:
http://arxiv.org/abs/1612.08830