Effect of Nb Doping on the Structure and Superconducting Properties of FeSe0.4Te0.6

被引：2
作者：
Zhang, Shiqing [1 ,2 ]
Cui, Yajing [2 ]
Wen, Zhiwei [1 ,2 ]
Li, Shulong [3 ]
Zhao, Yong [1 ,3 ,4 ,5 ]
Chen, Yongliang [1 ]
机构：
[1] Southwest Jiaotong Univ, Key Lab Magnet Suspens Technol & Maglev Vehicle, Minist Educ, Chengdu 610031, Peoples R China
[2] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Peoples R China
[3] Chengdu Univ, Inst Adv Study, Chengdu 610106, Peoples R China
[4] Fujian Prov Collaborat Innovat Ctr Adv High Field, Fuzhou 350117, Peoples R China
[5] Fujian Normal Univ, Coll Phys & Energy, Fuzhou 350117, Fujian, Peoples R China
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2023年 / 36卷 / 10-12期
基金：
中国国家自然科学基金;
关键词：
FeSe1-xTex super conductor; Critical current density; Magnetic flux pinning; Single crystal; PHASE-DIAGRAM; FESE; MAGNETISM;
D O I：
10.1007/s10948-023-06626-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
FeSe1-xTex superconductor has a relatively simple crystal structure and a high superconducting transition temperature in bulk form at ambient pressure, which gives it great application potential. In this study, Nb is selected to partially replace Fe in FeSe0.4Te0.6 and a series of Fe1-xNbxSe0.4Te0.6 single crystals with x = 0, 0.01, 0.03, 0.06, and 0.1 were synthesized using the self-flux. The crystal structure and superconductivity are characterized by XRD and magnetization measurements. The fish-tail peak effect was observed in samples with x = 0, 0.01, and 0.03. The critical current density of the three samples with x = 0, 0.01, and 0.03 is estimated by using the Bean model. According to the Dew-Hughes model, the effect of Nb doping on the magnetic flux pinning behavior of FeSe0.4Te0.6 is also investigated.
引用
收藏
页码：1821 / 1827
页数：7
相关论文
共 42 条
  • [1] MAGNETIZATION OF HARD SUPERCONDUCTORS
    BEAN, CP
    [J]. PHYSICAL REVIEW LETTERS, 1962, 8 (06) : 250 - +
  • [2] Temperature and time scaling of the peak-effect vortex configuration in FeTe0.7Se0.3
    Bonura, Marco
    Giannini, Enrico
    Viennois, Romain
    Senatore, Carmine
    [J]. PHYSICAL REVIEW B, 2012, 85 (13)
  • [3] Peak effect and superconducting properties of SmFeAsO0.8F0.2 wires
    Chen, Y. L.
    Cui, Y. J.
    Yang, Y.
    Zhang, Y.
    Wang, L.
    Cheng, C. H.
    Sorrell, C.
    Zhao, Y.
    [J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2008, 21 (11)
  • [4] FLUX PINNING MECHANISMS IN TYPE-II SUPERCONDUCTORS
    DEWHUGHES, D
    [J]. PHILOSOPHICAL MAGAZINE, 1974, 30 (02) : 293 - 305
  • [5] Effect of Ag Addition on Microstructure and Raman Vibrational Modes of Bulk FeSe
    Fabitha, K.
    Rao, M. S. Ramachandra
    Muralidhar, M.
    Furutani, K.
    Murakami, M.
    [J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2017, 30 (11) : 3117 - 3122
  • [6] Superconductivity close to magnetic instability in Fe(Se1-xTex)0.82
    Fang, M. H.
    Pham, H. M.
    Qian, B.
    Liu, T. J.
    Vehstedt, E. K.
    Liu, Y.
    Spinu, L.
    Mao, Z. Q.
    [J]. PHYSICAL REVIEW B, 2008, 78 (22):
  • [7] Growth conditions, structure and superconductivity of pure and metal-doped FeTe1-xSex single crystals
    Gawryluk, D. J.
    Fink-Finowicki, J.
    Wisniewski, A.
    Puzniak, R.
    Domukhovski, V.
    Diduszko, R.
    Kozlowski, M.
    Berkowski, M.
    [J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2011, 24 (06)
  • [8] Electric field-induced superconducting transition of insulating FeSe thin film at 35 K
    Hanzawa, Kota
    Sato, Hikaru
    Hiramatsu, Hidenori
    Kamiya, Toshio
    Hosono, Hideo
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2016, 113 (15) : 3986 - 3990
  • [9] He SL, 2013, NAT MATER, V12, P605, DOI [10.1038/NMAT3648, 10.1038/nmat3648]
  • [10] Phase separation in the iron chalcogenide superconductor Fe1+yTexSe1-x
    Hu, Hefei
    Zuo, Jian-Min
    Wen, Jinsheng
    Xu, Zhijun
    Lin, Zhiwei
    Li, Qiang
    Gu, Genda
    Park, Wan Kyu
    Greene, Laura H.
    [J]. NEW JOURNAL OF PHYSICS, 2011, 13
12345