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Author:

Liu Zhiyong (Liu Zhiyong.) | Suo Hongli (Suo Hongli.) (Scholars:索红莉) | Ma Lin (Ma Lin.) | Zhao Junjing (Zhao Junjing.) | Ni Baorong (Ni Baorong.) | Guo Zhichao (Guo Zhichao.) | Yam Binjie (Yam Binjie.) | Liu Min (Liu Min.) | Wu Ziping (Wu Ziping.) | Zhou Meiling (Zhou Meiling.)

Indexed by:

SCIE PKU CSCD

Abstract:

We report the effect of fluorine doping on the fabrication and superconductivity of the iron-based arsenic oxide SmO1-xF delta FeAs (delta >= x) compound. The fluorine over-doping can greatly reduce the heat treatment temperature and the heat treatment time, meanwhile the superconductivity of the SmO1-xF delta FeAs samples does not reduce. The critical transition temperature (T-c) is as high as 56.5 K for the SmO0.7F0.3FeAs sample prepared by the two-step solid state reaction method at 1120 degrees C for 40 h, the J(c) of the sample is 2.4x10(5) A/cm(2) (10 K, 0 T). T-c of the fluorine over-doped SmO0.7F0.35FeAs and SmO0.7F0.4FeAs samples prepared by the two-step solid state reaction method at 1100 degrees C for 20 h are 56 and 55 K, respectively J(c) of the both samples are 1.9x10(5) and 1.7x10(5) A/cm(2) (10 K, 0 T), respectively.

Keyword:

doping iron-based superconductor SmO1-xFxFeAs

Author Community:

  • [ 1 ] [Liu Zhiyong]Beijing Univ Technol, Coll Mat Sci & Engn, Educ Minist, Key Lab Funct Mat, Beijing 100022, Peoples R China
  • [ 2 ] [Zhao Junjing]Univ Illinois, Chicago, IL 60607 USA
  • [ 3 ] [Zhao Junjing]Argonne Natl Lab, Argonne, IL 60439 USA
  • [ 4 ] [Ni Baorong]Fukuoka Inst Technol, Fukuoka, Japan

Reprint Author's Address:

  • [Liu Zhiyong]Beijing Univ Technol, Coll Mat Sci & Engn, Educ Minist, Key Lab Funct Mat, Beijing 100022, Peoples R China

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Source :

RARE METAL MATERIALS AND ENGINEERING

ISSN: 1002-185X

Year: 2012

Issue: 7

Volume: 41

Page: 1144-1148

0 . 7 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 11

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