Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Hoshi, Kazuhisa"'
Autor:
Mizuguchi, Yoshikazu, Yamane, Kazuki, Matsumoto, Ryo, Hoshi, Kazuhisa, Yamashita, Aichi, Miura, Akira, Nakahira, Yuki, Kadobayashi, Hirokazu, Kawaguchi, Saori I., Takano, Yoshihiko
Recently, robustness of superconductivity (transition temperature, Tc) under high pressures has been observed in high-entropy alloy (HEA), bcc-type Ti-Zr-Hf-Nb-Ta, and HEA-type compounds (Ag,In,Sn,Pb,Bi)Te with a NaCl-type structure. Since those mate
Externí odkaz:
http://arxiv.org/abs/2308.04081
Autor:
Hattori, Takuma, Watanabe, Yuto, Nishizaki, Terukazu, Hiraoka, Koki, Kakihara, Masato, Hoshi, Kazuhisa, Mizuguchi, Yoshikazu, Kitagawa, Jiro
We explored quinary body-centered cubic (bcc) high-entropy alloy (HEA) superconductors with valence electron concentrations (VECs) ranging from 4.6 to 5.0, a domain that has received limited attention in prior research. Our search has led to the disc
Externí odkaz:
http://arxiv.org/abs/2307.01958
Autor:
Hoshi, Kazuhisa, Arima, Hiroto, Kataoka, Noriyuki, Ochi, Masayuki, Yamashita, Aichi, de Visser, Anne, Yokoya, Takayoshi, Kuroki, Kazuhiko, Mizuguchi, Yoshikazu
We report transport properties for layered BiCh2-based (Ch = S, Se) superconductors LaO1-xFxBiS2-ySey (x = 0.2, 0.5, y = 0-1.05) and the observation of weak antilocalization (WAL). Electrical resistivity and Hall coefficients for the Se-poor samples
Externí odkaz:
http://arxiv.org/abs/2211.00843
Autor:
Abbas, Fysol Ibna, Hoshi, Kazuhisa, Nakahira, Yuki, Yoshida, Miku, Yamashita, Aichi, Ito, Hiroaki, Miura, Akira, Moriyoshi, Chikako, Lee, Chul-Ho, Mizuguchi, Yoshikazu
The superconducting properties and structural parameters, including the Gr\"uneisen parameter ({\gamma}G), of the BiCh2-based (Ch: S, Se) layered superconductor LaO0.5F0.5BiS2-xSex were investigated. The superconducting transition temperature (Tc) in
Externí odkaz:
http://arxiv.org/abs/2208.11880
Autor:
Kitagawa, Jiro, Hoshi, Kazuhisa, Kawasaki, Yuta, Koga, Rikuo, Mizuguchi, Yoshikazu, Nishizaki, Terukazu
We have found that body-centered cubic (bcc) HfMoNbTiZr is a type-II BCS high-entropy alloy (HEA) superconductor with a superconducting critical temperature of $T_\mathrm{c}$=4.1 K. By employing a Debye temperature $\theta_\mathrm{D}$ of 263 K and $T
Externí odkaz:
http://arxiv.org/abs/2207.11845
Autor:
Abbas, Fysol Ibna, Hoshi, Kazuhisa, Yamashita, Aichi, Nakahira, Yuki, Goto, Yosuke, Miura, Akira, Moriyoshi, Chikako, Kuroiwa, Yoshihiro, Terashima, Kensei, Matsumoto, Ryo, Takano, Yoshihiko, Mizuguchi, Yoshikazu
Publikováno v:
J. Phys. Soc. Jpn. 91, 074706 (2022)
We studied Gr\"uneisen parameter ({\gamma}G) to investigate lattice anharmonicity in a layered BiS2-based superconductor system REO1-xFxBiS2 (RE = La, Ce, Pr, Nd), where in-plane chemical pressure was tuned by substituting the RE elements. With incre
Externí odkaz:
http://arxiv.org/abs/2203.11566
Publikováno v:
Journal of Physics Communications 6, 055009 (2022)
We report the upper critical field (Bc2) in the BiCh2-based superconductors CeOBiS1.7Se0.3 and PrO0.5F0.5BiS2-xSex (x = 0, 0.3). Single crystals of CeOBiS1.7Se0.3 and PrO0.5F0.5BiS2-xSex (x = 0, 0.3) were grown using the flux method. Single-crystal s
Externí odkaz:
http://arxiv.org/abs/2203.07010
Publikováno v:
Sci. Rep. 12, 288 (1-8)(2022)
Centrosymmetric compounds with local inversion symmetry breaking have tremendously interesting and intriguing physical properties. In this study, we focus on a BiCh$_2$-based (Ch: S, Se) layered superconductor, as a system with local inversion asymme
Externí odkaz:
http://arxiv.org/abs/2109.08812
Autor:
Mitobe, Tsubasa, Hoshi, Kazuhisa, Kasem, Md. Riad, Kiyama, Ryosuke, Usui, Hidetomo, Yamashita, Aichi, Higashinaka, Ryuji, Matsuda, Tatsuma D., Aoki, Yuji, Katase, Takayoshi, Goto, Yosuke, Mizuguchi, Yoshikazu
We investigated the chemical pressure effects on structural and electronic properties of SnTe-based material using partial substitution of Sn by Ag0.5Bi0.5, which results in lattice shrinkage. For Sn1-2x(AgBi)xTe, single-phase polycrystalline samples
Externí odkaz:
http://arxiv.org/abs/2109.07167
Publikováno v:
Phys. Status Solidi RRL 2021, 2000546(1-7) (2021)
We investigate the superconducting properties and possible nematic superconductivity of self-doped BiCh2-based (Ch: S, Se) superconductor CeOBiS1.7Se0.3 through the measurements of in-plane anisotropy of magnetoresistance. Single crystals of CeOBiS1.
Externí odkaz:
http://arxiv.org/abs/2011.12708