Anisotropy of superconductivity from MgB2 single crystals

被引:199
作者
Xu, M [1 ]
Kitazawa, H [1 ]
Takano, Y [1 ]
Ye, J [1 ]
Nishida, K [1 ]
Abe, H [1 ]
Matsushita, A [1 ]
Tsujii, N [1 ]
Kido, G [1 ]
机构
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
关键词
D O I
10.1063/1.1413729
中图分类号
O59 [应用物理学];
学科分类号
摘要
Magnesium diboride (MgB2) single crystals, with a maximum size of 0.5x0.5x0.02 mm(3), were grown by the vapor transport method in a sealed molybdenum crucible. A superconducting transition with the onset temperature of 38.6 K was confirmed by both transport and magnetization measurements. The upper critical field anisotropy ratio, H-c2(parallel to ab)(0)/H-c2(parallel toc)(0), was estimated to be 2.6 from the magnetic field-temperature phase diagram for MgB2 single crystals. (C) 2001 American Institute of Physics.
引用
收藏
页码:2779 / 2781
页数:3
相关论文
共 13 条
  • [2] Boron isotope effect in superconducting MgB2
    Bud'ko, SL
    Lapertot, G
    Petrovic, C
    Cunningham, CE
    Anderson, N
    Canfield, PC
    [J]. PHYSICAL REVIEW LETTERS, 2001, 86 (09) : 1877 - 1880
  • [3] Anisotropic superconducting properties of aligned MgB2 crystallites
    de Lima, OF
    Ribeiro, RA
    Avila, MA
    Cardoso, CA
    Coelho, AA
    [J]. PHYSICAL REVIEW LETTERS, 2001, 86 (26) : 5974 - 5977
  • [4] Thermodynamic and transport properties of superconducting Mg10B2
    Finnemore, DK
    Ostenson, JE
    Bud'ko, SL
    Lapertot, G
    Canfield, PC
    [J]. PHYSICAL REVIEW LETTERS, 2001, 86 (11) : 2420 - 2422
  • [5] HAAS S, 2001, CONDMAT0104207
  • [6] TEMPERATURE AND PURITY DEPENDENCE OF SUPERCONDUCTING CRITICAL FIELD HC2 .2.
    HELFAND, E
    WERTHAME.NR
    [J]. PHYSICAL REVIEW, 1966, 147 (01): : 288 - +
  • [7] SUPERCONDUCTIVITY OF GRAPHITE-INTERCALATION COMPOUNDS WITH ALKALI-METAL AMALGAMS
    IYE, Y
    TANUMA, S
    [J]. PHYSICAL REVIEW B, 1982, 25 (07): : 4583 - 4592
  • [8] Kortus J, 2001, PHYS REV LETT, V86, P4656, DOI 10.1103/PhysRevLett.86.4656
  • [9] Pressure dependence of the superconducting transition temperature of magnesium diboride
    Monteverde, M
    Núñez-Regueiro, M
    Rogado, N
    Regan, KA
    Hayward, MA
    He, T
    Loureiro, SM
    Cava, RJ
    [J]. SCIENCE, 2001, 292 (5514) : 75 - 77
  • [10] Superconductivity at 39 K in magnesium diboride
    Nagamatsu, J
    Nakagawa, N
    Muranaka, T
    Zenitani, Y
    Akimitsu, J
    [J]. NATURE, 2001, 410 (6824) : 63 - 64