Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Watashige, Tatsuya"'
Autor:
Watashige, Tatsuya
0048
甲第20166号
理博第4251号
新制||理||1611(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
甲第20166号
理博第4251号
新制||理||1611(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
Externí odkaz:
http://hdl.handle.net/2433/225391
Autor:
Mizukami, Yuta, Konczykowski, Marcin, Matsuura, Kohei, Watashige, Tatsuya, Kasahara, Shigeru, Matsuda, Yuji, Shibauchi, Takasada
Publikováno v:
J. Phys. Soc. Jpn. 86, 083706 (2017)
In many classes of unconventional superconductors, the question of whether the superconductivity is enhanced by the quantum-critical fluctuations on the verge of an ordered phase remains elusive. One of the most direct ways of addressing this issue i
Externí odkaz:
http://arxiv.org/abs/1707.08670
Autor:
Watashige, Tatsuya, Arsenijević, Stevan, Yamashita, Takuya, Terazawa, Daiki, Onishi, Takafumi, Opherden, Lars, Kasahara, Shigeru, Tokiwa, Yoshifumi, Kasahara, Yuichi, Shibauchi, Takasada, von Löhneysen, Hilbert, Wosnitza, Jochen, Matsuda, Yuji
Publikováno v:
J. Phys. Soc. Jpn. 86, 014707 (2017)
There is growing evidence that the superconducting semimetal FeSe ($T_c\sim8$ K) is in the crossover regime between weak-coupling Bardeen-Cooper-Schrieffer (BCS) and strong-coupling Bose-Einstein-condensate (BEC) limits. We report on longitudinal and
Externí odkaz:
http://arxiv.org/abs/1607.03256
Autor:
Terashima, Taichi, Kikugawa, Naoki, Kasahara, Shigeru, Watashige, Tatsuya, Matsuda, Yuji, Shibauchi, Takasada, Uji, Shinya
Publikováno v:
Phys. Rev. B 93, 180503 (2016)
The resistivity $\rho$ and Hall resistivity $\rho_H$ are measured on FeSe at pressures up to $P$ = 28.3 kbar in magnetic fields up to $B$ = 14.5 T. The $\rho(B)$ and $\rho_H(B)$ curves are analyzed with multicarrier models to estimate the carrier den
Externí odkaz:
http://arxiv.org/abs/1603.03487
Autor:
Pracht, Uwe S., Simmendinger, Julian, Dressel, Martin, Endo, Ryota, Watashige, Tatsuya, Hanaoka, Yousuke, Shimozawa, Masaaki, Terashima, Takahito, Shibauchi, Takasada, Matsuda, Yuji, Scheffler, Marc
Publikováno v:
Journal of Magnetism and Magnetic Materials (2016), pp. 31-35
We discuss the charge carrier dynamics of the heavy-fermion compound CeCoIn$_5$ in the metallic regime measured by means of quasi-optical THz spectroscopy. The transmittance of electromagnetic radiation through a CeCoIn$_5$ thin film on a dielectric
Externí odkaz:
http://arxiv.org/abs/1512.03575
Autor:
Sun, Yue, Pyon, Sunseng, Tamegai, Tsuyoshi, Kobayashi, Ryo, Watashige, Tatsuya, Kasahara, Shigeru, Matsuda, Yuji, Shibauchi, Takasada, Kitamura, Hisashi
Publikováno v:
Applied Physics Express 8, 113102 (2015)
In this report, we comprehensively study the effect of H$^+$ irradiation on the critical current density, $J_c$, and vortex pinning in FeSe single crystal. It is found that the value of $J_c$ for FeSe is enhanced more than twice after 3-MeV H$^+$ irr
Externí odkaz:
http://arxiv.org/abs/1511.05760
Autor:
Sun, Yue, Pyon, Sunseng, Tamegai, Tsuyoshi, Kobayashi, Ryo, Watashige, Tatsuya, Kasahara, Shigeru, Matsuda, Yuji, Shibauchi, Takasada
Publikováno v:
Phy. Rew. B 92, 144509 (2015)
We present a comprehensive study of the vortex pinning and dynamics in a high-quality FeSe single crystal, which is free from doping introduced inhomogeneities and charged quasi-particle-scattering because of its innate superconductivity. Critical cu
Externí odkaz:
http://arxiv.org/abs/1510.05753
Autor:
Hu, Yuwen, Ren, Xiao, Zhang, Rui, Luo, Huiqian, Kasahara, Shigeru, Watashige, Tatsuya, Shibauchi, Takasada, Dai, Pengcheng, Zhang, Yan, Matsuda, Yuji, Li, Yuan
Publikováno v:
Phys. Rev. B 93, 060504(R) (2016)
To elucidate the origin of nematic order in Fe-based superconductors, we report a Raman scattering study of lattice dynamics, which quantify the extent of $C_4$-symmetry breaking, in BaFe$_2$As$_2$ and FeSe. FeSe possesses a nematic ordering temperat
Externí odkaz:
http://arxiv.org/abs/1510.03526
Autor:
Terashima, Taichi, Kikugawa, Naoki, Kiswandhi, Andhika, Graf, David, Choi, Eun-Sang, Brooks, James S., Kasahara, Shigeru, Watashige, Tatsuya, Matsuda, Yuji, Shibauchi, Takasada, Wolf, Thomas, Böhmer, Anna E., Hardy, Frédéric, Meingast, Christoph, Löhneysen, Hilbert v., Uji, Shinya
Publikováno v:
Phys. Rev. B 93, 094505 (2016)
We report Shubnikov-de Haas (SdH) oscillation measurements on FeSe under high pressure up to $P$ = 16.1 kbar. We find a sudden change in SdH oscillations at the onset of the pressure-induced antiferromagnetism at $P$ $\sim$ 8 kbar. We argue that this
Externí odkaz:
http://arxiv.org/abs/1510.01840
Autor:
Terashima, Taichi, Kikugawa, Naoki, Kasahara, Shigeru, Watashige, Tatsuya, Shibauchi, Takasada, Matsuda, Yuji, Wolf, Thomas, Böhmer, Anna E., Hardy, Frédéric, Meingast, Christoph, Löhneysen, Hilbert v., Uji, Shinya
Publikováno v:
J. Phys. Soc. Jpn. 84, 063701 (2015)
We report measurements of resistance and ac magnetic susceptibility on FeSe single crystals under high pressure up to 27.2 kbar. The structural phase transition is quickly suppressed with pressure, and the associated anomaly is not seen above $\sim$1
Externí odkaz:
http://arxiv.org/abs/1502.03548