Magnetic profiles in magnesium diboride single crystals

被引:0
作者
Lyard, L
Klein, T
Marcus, J
Marcenat, C
Lee, SI
机构
[1] CNRS, Etud Proprietes Elect Solides Lab, F-38042 Grenoble 9, France
[2] Comis Nacl Energia Atom, Dept Rech Fondamentale Matiere Condensee, SPSMS, F-38054 Grenoble, France
[3] Pohang Univ Sci & Technol, NVCRICS, Pohang 790784, South Korea
[4] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea
关键词
mixed state; critical fields; flux pinning;
D O I
10.1007/s10582-004-0117-0
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Local vortex properties were studied using a Hall-probe array in magnesium diboride single crystals. We present the first field profiles in MgB2 and show the important role of surface barriers at 4.2K and low field in the irreversible behavior.
引用
收藏
页码:D453 / D456
页数:4
相关论文
共 11 条
  • [1] Temperature and field dependence of the anisotropy of MgB2 -: art. no. 167004
    Angst, M
    Puzniak, R
    Wisniewski, A
    Jun, J
    Kazakov, SM
    Karpinski, J
    Roos, J
    Keller, H
    [J]. PHYSICAL REVIEW LETTERS, 2002, 88 (16) : 1670041 - 1670044
  • [2] SURFACE BARRIER IN TYPE-2 SUPERCONDUCTORS
    BEAN, CP
    LIVINGSTON, JD
    [J]. PHYSICAL REVIEW LETTERS, 1964, 12 (01) : 14 - &
  • [3] MAGNETIZATION OF HARD SUPERCONDUCTORS
    BEAN, CP
    [J]. PHYSICAL REVIEW LETTERS, 1962, 8 (06) : 250 - +
  • [4] Geometric barrier and current string in type-II superconductors obtained from continuum electrodynamics
    Brandt, EH
    [J]. PHYSICAL REVIEW B, 1999, 59 (05): : 3369 - 3372
  • [5] Determination of superconducting anisotropy from magnetization data on random powders as applied to LuNi2B2C, YNi2B2C, and MgB2 -: art. no. 180506
    Bud'ko, SL
    Kogan, VG
    Canfield, PC
    [J]. PHYSICAL REVIEW B, 2001, 64 (18)
  • [6] Superconducting properties of well-shaped MgB2 single crystals -: art. no. 100510
    Kim, KHP
    Choi, JH
    Jung, CU
    Chowdhury, P
    Lee, HS
    Park, MS
    Kim, HJ
    Kim, JY
    Du, ZL
    Choi, EM
    Kim, MS
    Kang, WN
    Lee, SI
    Sung, GY
    Lee, JY
    [J]. PHYSICAL REVIEW B, 2002, 65 (10) : 1 - 4
  • [7] Anisotropy of the upper critical field and critical current in single crystal MgB2 -: art. no. 180502
    Lyard, L
    Samuely, P
    Szabo, P
    Klein, T
    Marcenat, C
    Paulius, L
    Kim, KHP
    Jung, CU
    Lee, HS
    Kang, B
    Choi, S
    Lee, SI
    Marcus, J
    Blanchard, S
    Jansen, AGM
    Welp, U
    Karapetrov, G
    Kwok, WK
    [J]. PHYSICAL REVIEW B, 2002, 66 (18) : 1 - 4
  • [8] LYARD L, 2004, PHYS REV LETT, V92, P5
  • [9] Superconductivity at 39 K in magnesium diboride
    Nagamatsu, J
    Nakagawa, N
    Muranaka, T
    Zenitani, Y
    Akimitsu, J
    [J]. NATURE, 2001, 410 (6824) : 63 - 64
  • [10] Superconducting transition and phase diagram of single-crystal MgB2 -: art. no. 012505
    Welp, U
    Rydh, A
    Karapetrov, G
    Kwok, WK
    Crabtree, GW
    Marcenat, C
    Paulius, L
    Klein, T
    Marcus, J
    Kim, KHP
    Jung, CU
    Lee, HS
    Kang, B
    Lee, SI
    [J]. PHYSICAL REVIEW B, 2003, 67 (01)