Mixed state of a dirty two-band superconductor:: Application to MgB2 -: art. no. 177002

被引：116
|
作者：
Koshelev, AE
Golubov, AA
机构：
[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[2] Univ Twente, Dept Appl Phys, NL-7500 AE Enschede, Netherlands
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.90.177002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the vortex state in a two-band superconductor with strong intraband and weak interband electronic scattering rates. Coupled Usadel equations are solved numerically, and the distributions of the pair potentials and local densities of states are calculated for two bands at different values of magnetic fields. The existence of two distinct length scales corresponding to different bands is demonstrated. The results provide qualitative interpretation of recent scanning tunneling microscopy experiments on vortex structure imaging in MgB2.
引用
收藏
页数：4
相关论文
共 50 条
  • [31] Magnetic-field dependence of the gaps in a two-band superconductor:: A point-contact study of MgB2 single crystals -: art. no. 100504
    Gonnelli, RS
    Daghero, D
    Calzolari, A
    Ummarino, GA
    Dellarocca, V
    Stepanov, VA
    Jun, J
    Kazakov, SM
    Karpinski, J
    PHYSICAL REVIEW B, 2004, 69 (10)
  • [32] Two-band superconductivity in MgB2
    Iavarone, M.
    Karapetrov, G.
    Koshelev, A.E.
    Kwok, W.K.
    Crabtree, G.W.
    Hinks, D.G.
    Kang, W.N.
    Choi, Eun-Mi
    Kim, Hyun Jung
    Kim, Hyeong-Jin
    Lee, S.I.
    Physical Review Letters, 2002, 89 (18) : 1 - 187002
  • [33] Ginzburg-Landau theory and effects of pressure on a two-band superconductor:: application to MgB2
    Betouras, JJ
    Ivanov, VA
    Peeters, FM
    EUROPEAN PHYSICAL JOURNAL B, 2003, 31 (03): : 349 - 354
  • [34] Thermodynamics of two-band superconductors:: The case of MgB2 (vol 72, pg 024504, 2005) -: art. no. 059902
    Dolgov, OV
    Kremer, RK
    Kortus, J
    Golubov, AA
    Shulga, SV
    PHYSICAL REVIEW B, 2005, 72 (05)
  • [35] Coherence lengths and anisotropy in MgB2 superconductor -: art. no. 020507
    Dulcic, A
    Pozek, M
    Paar, D
    Choi, EM
    Kim, HJ
    Kang, WN
    Lee, SI
    PHYSICAL REVIEW B, 2003, 67 (02)
  • [36] Positron annihilation studies in the MgB2 superconductor -: art. no. 012518
    Pujari, PK
    Sudarshan, K
    Goswami, A
    Manohar, SB
    Aswal, DK
    Singh, A
    Sen, S
    Gupta, SK
    PHYSICAL REVIEW B, 2002, 66 (01) : 1 - 4
  • [37] Intralayer carbon substitution in the MgB2 superconductor -: art. no. 134513
    Takenobu, T
    Ito, T
    Chi, DH
    Prassides, K
    Iwasa, Y
    PHYSICAL REVIEW B, 2001, 64 (13)
  • [38] Magnetic scattering effects in two-band superconductor: the ferromagnetic dopants in MgB2
    Li, W. X.
    Zeng, R.
    Poh, C. K.
    Li, Y.
    Dou, S. X.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (13)
  • [39] Specific heat and thermal conductivity in the mixed state of MgB2 -: art. no. 137003
    Tewordt, L
    Fay, D
    PHYSICAL REVIEW LETTERS, 2002, 89 (13)
  • [40] Specific heat and thermal conductivity in the vortex state of the two-gap superconductor MgB2 -: art. no. 134524
    Tewordt, L
    Fay, D
    PHYSICAL REVIEW B, 2003, 67 (13):
12345