Evidence of inhomogeneous superconductivity in FeTe 1-xSe x by scotch-tape method

Hiroyuki Okazaki; Tohru Watanabe; Takahide Yamaguchi; Yasuna Kawasaki; Keita Deguchi; Satoshi Demura; Toshinori Ozaki; Saleem J. Denholme; Yoshikazu Mizuguchi; Hiroyuki Takeya; Yoshihiko Takano

doi:10.1143/JPSJ.81.113707

Evidence of inhomogeneous superconductivity in FeTe _1-xSe _x by scotch-tape method

Hiroyuki Okazaki, Tohru Watanabe, Takahide Yamaguchi, Yasuna Kawasaki, Keita Deguchi, Satoshi Demura, Toshinori Ozaki, Saleem J. Denholme, Yoshikazu Mizuguchi, Hiroyuki Takeya, Yoshihiko Takano

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We have fabricated thin films of FeTe _1-xSe _x using a scotch-tape method. The superconductivities of the thin films are different from each other although these films were fabricated from the same bulk sample. The result clearly presents the inhomogeneous superconductivity in FeTe _1-xSe _x. The difference might arise from inhomogeneity due to the excess Fe concentration. The resistivity of a thin film with low excess Fe shows good superconductivity with the sharp superconducting-transition width and more isotropic superconductivity.

Original language	English
Article number	113707
Journal	Journal of the Physical Society of Japan
Volume	81
Issue number	11
DOIs	https://doi.org/10.1143/JPSJ.81.113707
Publication status	Published - Nov 2012
Externally published	Yes

Keywords

FeTe Se
Inhomogeneous superconductivity
Iron-based superconductor
Scotch-tape method
Thin film

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10.1143/JPSJ.81.113707

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title = "Evidence of inhomogeneous superconductivity in FeTe 1-xSe x by scotch-tape method",

abstract = "We have fabricated thin films of FeTe 1-xSe x using a scotch-tape method. The superconductivities of the thin films are different from each other although these films were fabricated from the same bulk sample. The result clearly presents the inhomogeneous superconductivity in FeTe 1-xSe x. The difference might arise from inhomogeneity due to the excess Fe concentration. The resistivity of a thin film with low excess Fe shows good superconductivity with the sharp superconducting-transition width and more isotropic superconductivity.",

keywords = "FeTe Se, Inhomogeneous superconductivity, Iron-based superconductor, Scotch-tape method, Thin film",

author = "Hiroyuki Okazaki and Tohru Watanabe and Takahide Yamaguchi and Yasuna Kawasaki and Keita Deguchi and Satoshi Demura and Toshinori Ozaki and Denholme, {Saleem J.} and Yoshikazu Mizuguchi and Hiroyuki Takeya and Yoshihiko Takano",

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doi = "10.1143/JPSJ.81.113707",

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T1 - Evidence of inhomogeneous superconductivity in FeTe 1-xSe x by scotch-tape method

AU - Okazaki, Hiroyuki

AU - Watanabe, Tohru

AU - Yamaguchi, Takahide

AU - Kawasaki, Yasuna

AU - Deguchi, Keita

AU - Demura, Satoshi

AU - Ozaki, Toshinori

AU - Denholme, Saleem J.

AU - Mizuguchi, Yoshikazu

AU - Takeya, Hiroyuki

AU - Takano, Yoshihiko

PY - 2012/11

Y1 - 2012/11

N2 - We have fabricated thin films of FeTe 1-xSe x using a scotch-tape method. The superconductivities of the thin films are different from each other although these films were fabricated from the same bulk sample. The result clearly presents the inhomogeneous superconductivity in FeTe 1-xSe x. The difference might arise from inhomogeneity due to the excess Fe concentration. The resistivity of a thin film with low excess Fe shows good superconductivity with the sharp superconducting-transition width and more isotropic superconductivity.

AB - We have fabricated thin films of FeTe 1-xSe x using a scotch-tape method. The superconductivities of the thin films are different from each other although these films were fabricated from the same bulk sample. The result clearly presents the inhomogeneous superconductivity in FeTe 1-xSe x. The difference might arise from inhomogeneity due to the excess Fe concentration. The resistivity of a thin film with low excess Fe shows good superconductivity with the sharp superconducting-transition width and more isotropic superconductivity.

KW - FeTe Se

KW - Inhomogeneous superconductivity

KW - Iron-based superconductor

KW - Scotch-tape method

KW - Thin film

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DO - 10.1143/JPSJ.81.113707

M3 - Article

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SN - 0031-9015

VL - 81

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 11

M1 - 113707

ER -

Evidence of inhomogeneous superconductivity in FeTe _1-xSe _x by scotch-tape method

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