Pair-breaking critical current density of magnesium diboride

被引：32
|
作者：
Kunchur, MN [1 ]
Lee, SI
Kang, WN
机构：
[1] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA
[2] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea
来源：
PHYSICAL REVIEW B | 2003年 / 68卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.68.064516
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the investigation of the pair-breaking current density j(d) in magnesium diboride. At low current densities j, the transition temperature T-c shifts in the classic DeltaT(c)(j)/T-c(0)proportional to-[j/j(d)(0)](2/3) manner, with a projected j(d)(0)approximate to2x10(7) A/cm(2). Current-voltage curves at fixed temperatures yield a similar value for j(d)(0), with an overall j(d)(T) dependence consistent with Ginzburg-Landau theory. To our knowledge this is the first complete investigation of j(d)(T) down to Tapproximate to0 in any superconductor.
引用
收藏
页数：4
相关论文
共 50 条
  • [21] SUPERCONDUCTING TUNNELING IN A PAIR-BREAKING MICROWAVE FIELD
    RUTLEDGE, JE
    DYNES, RC
    NARAYANAMURTI, V
    JOURNAL OF LOW TEMPERATURE PHYSICS, 1984, 54 (5-6) : 547 - 554
  • [22] EQUIVALENCE OF DIFFERENT PAIR-BREAKING MECHANISMS IN SUPERCONDUCTORS
    MAKI, K
    FULDE, P
    PHYSICAL REVIEW, 1965, 140 (5A): : 1586 - &
  • [23] PAIR-BREAKING IN SUPERFLUID HE-3
    MCCLINTOCK, PVE
    NATURE, 1976, 264 (5584) : 316 - 317
  • [24] Pair-breaking effect in a van Hove superconductor
    Tifrea, I
    Crisan, M
    Yoksan, S
    JOURNAL OF SUPERCONDUCTIVITY, 1997, 10 (05): : 503 - 506
  • [25] Pair-breaking effects on charge imbalance in superconductors
    Mattoo, BA
    INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 2002, 40 (06) : 402 - 406
  • [26] Pair-Breaking Effect in a van Hove Superconductor
    I. Tifrea
    M. Crisan
    S. Yoksan
    Journal of Superconductivity, 1997, 10 : 503 - 506
  • [27] PAIR BREAKING CRITICAL CURRENT IN A PERCOLATING SUPERCONDUCTOR
    ALTEROVITZ, SA
    DUBY, T
    APPLIED PHYSICS LETTERS, 1984, 44 (06) : 637 - 639
  • [28] CRITICAL PAIR-BREAKING CURRENTS OF THIN SUPERCONDUCTING FILMS IN A PERPENDICULAR MAGNETIC-FIELD
    FOGEL, NY
    MOSHENSKII, AA
    GLUKHOV, AM
    DMITRENKO, IM
    JETP LETTERS, 1975, 22 (09) : 217 - 219
  • [29] Effect of higher borides and inhomogeneity of oxygen distribution on critical current density of undoped and doped magnesium diboride
    Prikhna, T. A.
    Gawalek, W.
    Tkach, V. M.
    Danilenko, N. I.
    Savchuk, Ya M.
    Dub, S. N.
    Moshchil, V. E.
    Kozyrev, A. V.
    Sergienko, N. V.
    Wendt, M.
    Melnikov, V. S.
    Dellith, J.
    Weber, H.
    Eisterer, M.
    Schmidt, Ch
    Habisreuther, T.
    Litzkendorf, D.
    Vajda, J.
    Shapovalov, A. P.
    Sokolovsky, V.
    Nagorny, P. A.
    Sverdun, V. B.
    Kosa, J.
    Karau, F.
    Starostina, A. V.
    9TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS 09), 2010, 234
  • [30] CRITICAL CURRENT DENSITY PERFORMANCE OF MALIC ACID DOPED MAGNESIUM DIBORIDE WIRES AT DIFFERENT OPERATING TEMPERATURES
    Xu, X.
    Kim, J. H.
    Zhang, Y.
    Jercinovic, M.
    Babic, E.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2009, 23 (17): : 3497 - 3502
12345