Critical current density and vortex dynamics in uranium irradiated Co-doped BaFe2As2

被引：15
|
作者：
Yagyuda, H. [1 ]
Nakajima, Y. [1 ,2 ]
Tamegai, T. [1 ,2 ]
Kanai, Y. [3 ]
Kambara, T. [4 ]
机构：
[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
[2] Transformat Res Project Iron Pnictide TRIP, JST, Bunkyo Ku, Tokyo 1138656, Japan
[3] RIKEN, Atom Phys Lab, Wako, Saitama 3510198, Japan
[4] RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2011年 / 471卷 / 21-22期
关键词：
Iron-pnictide superconductor; Critical current density; Suppression of transition temperature; COLUMNAR DEFECTS; FIELD; SUPERCONDUCTIVITY; PROFILE; PHASE;
D O I：
10.1016/j.physc.2011.05.056
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the effect of defects introduced by heavy-ion irradiation with 2.6 GeV uranium ions at several matching fields in single crystalline Ba(Fe0.92Co0.075)(2)As-2. The suppression rate of T, at lower matching fields is larger than that at higher matching fields. The critical current density calculated from magnetic hysteresis loop is enhanced up to 4.1 x 10(6) A/cm(2) at 2 K. Clear dips in magnetic hysteresis loops near zero field are observed at high matching fields. Field dependence of normalized relaxation rate is suppressed, and the relationship between the dip and the relaxation rate is discussed. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：790 / 793
页数：4
相关论文
共 50 条
  • [41] Doping dependence of magnetic and transport properties in single crystalline Co-doped BaFe2As2
    Nakajima, Yasuyuki
    Taen, Toshihiro
    Tamegai, Tsuyoshi
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2010, 470 : S408 - S410
  • [42] Template engineering of Co-doped BaFe2As2 single-crystal thin films
    S. Lee
    J. Jiang
    Y. Zhang
    C. W. Bark
    J. D. Weiss
    C. Tarantini
    C. T. Nelson
    H. W. Jang
    C. M. Folkman
    S. H. Baek
    A. Polyanskii
    D. Abraimov
    A. Yamamoto
    J. W. Park
    X. Q. Pan
    E. E. Hellstrom
    D. C. Larbalestier
    C. B. Eom
    Nature Materials, 2010, 9 : 397 - 402
  • [43] Co-doped BaFe2As2 Josephson junction fabricated with a focused helium ion beam
    Chen, Ziwen
    Zhang, Yan
    Ma, Ping
    Xu, Zhongtang
    Li, Yulong
    Wang, Yue
    Lu, Jianming
    Ma, Yanwei
    Gan, Zizhao
    CHINESE PHYSICS B, 2024, 33 (04)
  • [44] Flux pinning and vortex transitions in doped BaFe2As2 single crystals
    Ghorbani, S. R.
    Wang, X. L.
    Shabazi, M.
    Dou, S. X.
    Choi, K. Y.
    Lin, C. T.
    APPLIED PHYSICS LETTERS, 2012, 100 (07)
  • [45] Anisotropic inplane spin correlation in the parent and Co-doped BaFe2As2: A neutron scattering study
    Ibuka, S.
    Nambu, Y.
    Yamazaki, T.
    Lumsden, M. D.
    Sato, T. J.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2014, 507 : 25 - 30
  • [46] Possible Superconductivity above 25 K in Single-Crystalline Co-Doped BaFe2As2
    Nakajima, Yasuyuki
    Taen, Toshihiro
    Tamegai, Tsuyoshi
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2009, 78 (02)
  • [47] Evidence for composition variations and impurity segregation at grain boundaries in high current-density polycrystalline K- and Co-doped BaFe2As2 superconductors
    Kim, Yoon-Jun
    Weiss, Jeremy D.
    Hellstrom, Eric E.
    Larbalestier, David C.
    Seidman, David N.
    APPLIED PHYSICS LETTERS, 2014, 105 (16)
  • [48] Transport properties and pinning analysis for Co-doped BaFe2As2 thin films on metal tapes
    Xu, Zhongtang
    Yuan, Pusheng
    Fan, Fan
    Chen, Yimin
    Ma, Yanwei
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2018, 31 (05):
  • [49] Identical spin fluctuations in Cu- and Co-doped BaFe2As2 independent of electron doping
    Grafe, H. -J.
    Graefe, U.
    Dioguardi, A. P.
    Curro, N. J.
    Aswartham, S.
    Wurmehl, S.
    Buechner, B.
    PHYSICAL REVIEW B, 2014, 90 (09):
  • [50] Infrared Measurement of the Pseudogap of P-Doped and Co-Doped High-Temperature BaFe2As2 Superconductors
    Moon, S. J.
    Schafgans, A. A.
    Kasahara, S.
    Shibauchi, T.
    Terashima, T.
    Matsuda, Y.
    Tanatar, M. A.
    Prozorov, R.
    Thaler, A.
    Canfield, P. C.
    Sefat, A. S.
    Mandrus, D.
    Basov, D. N.
    PHYSICAL REVIEW LETTERS, 2012, 109 (02)
12345