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Significant enhancement of superconducting properties in the FeSe0.5Te0.5 bulks by minor Sn addition

Journal Article


Abstract


  • Sn addition improves bulk superconducting properties of FeSe0.5Te0.5 with the increase of onset transition temperature and sharpens the transition width. The critical current density (Jc) of Sn-added sample is about 7×103 A cm-2 in self field and maintains a stable value of 3×102 A cm-2 even beyond 60,000 Oe at 4.3 K, much higher than that of the Sn-free one. Phase compositions and morphology characterizations indicate that minor Sn addition facilitates the formation of the superconducting phase whose composition is closer to the ideal one, and suppresses the formation of Fe7Se8 impurity and amorphous phase, which contribute to the improvement of Jc.

UOW Authors


  •   Chen, Ning (external author)
  •   Liu, Yongchang (external author)
  •   Ma, Zongqing (external author)
  •   Li, Hui Jun.

Publication Date


  • 2016

Citation


  • Chen, N., Liu, Y., Ma, Z. & Li, H. (2016). Significant enhancement of superconducting properties in the FeSe0.5Te0.5 bulks by minor Sn addition. Materials Letters, 175 16-19.

Scopus Eid


  • 2-s2.0-84962456162

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1942

Number Of Pages


  • 3

Start Page


  • 16

End Page


  • 19

Volume


  • 175

Place Of Publication


  • Netherlands

Abstract


  • Sn addition improves bulk superconducting properties of FeSe0.5Te0.5 with the increase of onset transition temperature and sharpens the transition width. The critical current density (Jc) of Sn-added sample is about 7×103 A cm-2 in self field and maintains a stable value of 3×102 A cm-2 even beyond 60,000 Oe at 4.3 K, much higher than that of the Sn-free one. Phase compositions and morphology characterizations indicate that minor Sn addition facilitates the formation of the superconducting phase whose composition is closer to the ideal one, and suppresses the formation of Fe7Se8 impurity and amorphous phase, which contribute to the improvement of Jc.

UOW Authors


  •   Chen, Ning (external author)
  •   Liu, Yongchang (external author)
  •   Ma, Zongqing (external author)
  •   Li, Hui Jun.

Publication Date


  • 2016

Citation


  • Chen, N., Liu, Y., Ma, Z. & Li, H. (2016). Significant enhancement of superconducting properties in the FeSe0.5Te0.5 bulks by minor Sn addition. Materials Letters, 175 16-19.

Scopus Eid


  • 2-s2.0-84962456162

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1942

Number Of Pages


  • 3

Start Page


  • 16

End Page


  • 19

Volume


  • 175

Place Of Publication


  • Netherlands