Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Omachi, Atsushi"'
Publikováno v:
Cogent Physics (2016), 3: 1156281
The layered Bi-chalcogenide compounds have been drawing much attention as a new layered superconductor family since 2012. Due to the rich variation of crystal structure and constituent elements, the development of new physics and chemistry of the lay
Externí odkaz:
http://arxiv.org/abs/1602.05320
Publikováno v:
J. Phys. Soc. Jpn. 84, 024723 (2015)
We have systematically investigated the crystal structure, magnetic susceptibility, and electrical resistivity of the BiS2-based superconductor LaO0.5F0.5Bi(S1-xSex)2 (x = 0 - 0.7). With expanding lattice volume by Se substitution, bulk superconducti
Externí odkaz:
http://arxiv.org/abs/1410.6775
Autor:
Mizuguchi, Yoshikazu, Omachi, Atsushi, Goto, Yosuke, Kamihara, Yoichi, Matoba, Masanori, Hiroi, Takafumi, Kajitani, Joe, Miura, Osuke
Publikováno v:
J. Appl. Phys. 116, 163915 (2014)
We have investigated the thermoelectric properties of the novel layered bismuth chalcogenides LaOBiS2-xSex. The partial substitution of S by Se produced the enhancement of electrical conductivity (metallic characteristics) in LaOBiS2-xSex. The power
Externí odkaz:
http://arxiv.org/abs/1409.2189
Publikováno v:
J. Phys. Soc. Jpn. 84, 044712(1-6) (2015)
We have systematically investigated the crystal structure and the magnetic properties of BiS2-based superconductor Ce1-xNdxO1-yFyBiS2 (x = 0 - 1.0, y = 0.3, 0.5 and 0.7) and Nd1-zSmzO1-yFyBiS2 (x = 0 - 0.8, y = 0.3, 0.5 and 0.7). In the REOBiS2 syste
Externí odkaz:
http://arxiv.org/abs/1408.2625
Publikováno v:
J. Supercond. Nov. Magn. 28, 1129-1133 (2014)
Recently, several types of BiS2-based superconductor such as Bi4O4S3, REO1-xFxBiS2 (RE: rare earth) and Sr1-xLaxFBiS2 have been discovered. In this study, we have investigated the crystal structure and the superconducting properties for two kinds of
Externí odkaz:
http://arxiv.org/abs/1404.6361
Publikováno v:
J Supercond. Nov. Magn. 28, 1149-1153 (2014)
Recently, new layered superconductors having a BiS2-type conduction layer have been discovered. NdO1-xFxBiS2 is a typical BiS2-based superconductor with a maximum Tc of 5.4 K. In this study, the effect of element substitution within the superconducti
Externí odkaz:
http://arxiv.org/abs/1404.6359
Autor:
Kajitani, Joe, Deguchi, Keita, Hiroi, Takafumi, Omachi, Atsushi, Demura, Satoshi, Takano, Yoshihiko, Miura, Osuke, Mizuguchi, Yoshikazu
Publikováno v:
J. Phys. Soc. Jpn. 83 (2014) 065002
We investigated the crystal structure and superconducting properties of As-grown and high-pressure-annealed PrO0.5F0.5BiS2. We found that the high-pressure annealing generates uniaxial lattice contraction along the c axis. Both As-grown and high-pres
Externí odkaz:
http://arxiv.org/abs/1401.7506
Publikováno v:
J. Appl. Phys. 115, 083909 (2014)
We have investigated the high-temperature thermoelectric properties of the layered compound LaO1-xFxBiS2. The electrical resistivity of LaOBiS2 showed an anomalous behavior; a metal-semiconductor transition was observed around 270 K. It was found tha
Externí odkaz:
http://arxiv.org/abs/1312.4694
We have investigated the crystal structure and superconducting properties of the BiS2-based layered superconductor Ce1-xNdxO0.5F0.5BiS2. Bulk superconductivity was observed for x > 0.3, and the transition temperature was enhanced with increasing Nd c
Externí odkaz:
http://arxiv.org/abs/1311.4272
Autor:
Kajitani, Joe, Deguchi, Keita, Omachi, Atsushi, Hiroi, Takafumi, Takano, Yoshihiko, Takatsu, Hiroshi, Kadowaki, Hiroaki, Miura, Osuke, Mizuguchi, Yoshikazu
Publikováno v:
Solid State Commun. 181, 1-4 (2014)
Correlation between crystal structure and superconducting properties of the BiS2-based superconductor LaO0.5F0.5BiS2 was investigated. We have prepared LaO0.5F0.5BiS2 polycrystalline samples with various lattice constants. It was found that the annea
Externí odkaz:
http://arxiv.org/abs/1306.3346