Size dependence of oxygen-annealing effects on superconductivity of Fe1+yTe1-xSx

Teruo Yamazaki, Tatsuya Sakurai, Hiroshi Yaguchi

研究成果査読

5 被引用数 (Scopus)

抄録

For the Fe-based superconductor Fe1+yTe1-xSx, superconductivity is induced by annealing treatment in oxygen atmosphere, whereas as-grown samples do not show superconductivity. We investigated the sample-size dependence of O2-annealing effects in Fe1.01Te0.91S0.09. The annealing conditions were fixed to 1 atm, 200°C, and 2 h. We carried out magnetic susceptibility and specific heat measurements in order to evaluate the superconducting volume fraction. We found that Fe1+yTe1-xSx has an optimal size for the induction of bulk superconductivity by O2 annealing. Our results indicate that O2 annealing is probably effective near the surface of samples over a length of a few tens of micro meters.

本文言語English
論文番号114712
ジャーナルJournal of the Physical Society of Japan
85
11
DOI
出版ステータスPublished - 2016 11 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Size dependence of oxygen-annealing effects on superconductivity of Fe<sub>1+y</sub>Te<sub>1-x</sub>S<sub>x</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル