University of Wollongong
Browse

Magnetic flux penetration in polycrystalline SmFeO0.75F0.2As

Download (297.47 kB)
journal contribution
posted on 2024-11-15, 14:26 authored by Zhi W Lin, Yong Jian Li, Jian G Zhu, Youguang Guo, Xiaolin WangXiaolin Wang
The recently discovered Fe–As superconducting materials which show high potential ability to carry current due to their low anisotropy have attracted a great number of attentions to understand their superconductivity mechanism and explore their applications. This paper presents a method to synthesis SmFeO0.75F0.20As polycrystalline by hot press in detail. The magnetization at different temperatures and applied fields obtained by a superconducting quantum interference device are also discussed. In addition, the local magnetization process is presented by magneto-optical imaging technique at the conditions of zero-field-cooling and field-cooling. It is found that the collective magnetization process of the newly discovered Fe–As superconductors is very similar to that of high-Tc cuprates. For instance, the Fe–As superconductors and high-Tc cuprates have the same magnetization features due to strong pining and intergrain weak link. The global supercurrent is significantly lower than local grain supercurrent due to the weak line between the grains.

History

Citation

Lin, ZW, Li, Y, Zhu, JG, Guo, Y & Wang, P (2010), Magnetic flux penetration in polycrystalline SmFeO0.75F0.2As, Journal of Applied Physics, 107(9), pp. 1-3.

Journal title

Journal of Applied Physics

Volume

107

Issue

9

Language

English

RIS ID

32921

Usage metrics

    Categories

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC