Stability of vortex states in mesoscopic superconducting squares with artificial pinning

被引：1
作者：
Furugen, R.
Hatsumi, S.
Ootuka, Y.
Kanda, A. [1 ]
机构：
[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2008年 / 468卷 / 15-20期
关键词：
mesoscopic superconductivity; vortex pinning; fluxoid state transitions;
D O I：
10.1016/j.physc.2008.05.214
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We experimentally study the stability of the vortex states in mesoscopic superconducting squares with zero, three and four submicron artificial pinning centers (antidots) by measuring the width of the magnetic field region over which a particular superconducting state with vorticity L is stabilized. The transitions between different vortex states are detected by the voltage change across current-biased small tunnel junctions attached to the square. The vortex states (L not equal 0) are significantly stabilized by the existence of antidots. We discuss the effect of the number of antidots on the stability of mesoscopic vortex states. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1301 / 1304
页数：4
相关论文
共 12 条
  • [1] Multivortex and giant vortex states near the expulsion and penetration fields in thin mesoscopic superconducting squares
    Baelus, BJ
    Kanda, A
    Shimizu, N
    Tadano, K
    Ootuka, Y
    Kadowaki, K
    Peeters, FM
    [J]. PHYSICAL REVIEW B, 2006, 73 (02)
  • [2] Dependence of the vortex configuration on the geometry of mesoscopic flat samples
    Baelus, BJ
    Peeters, FM
    [J]. PHYSICAL REVIEW B, 2002, 65 (10): : 1 - 12
  • [3] Stability and transition between vortex configurations in square mesoscopic samples with antidots
    Berdiyorov, GR
    Baelus, BJ
    Milosevic, MV
    Peeters, FM
    [J]. PHYSICAL REVIEW B, 2003, 68 (17)
  • [4] Symmetry-induced formation of antivortices in mesoscopic superconductors
    Chibotaru, LF
    Ceulemans, A
    Bruyndoncx, V
    Moshchalkov, VV
    [J]. NATURE, 2000, 408 (6814) : 833 - 835
  • [5] Stabilization of vortex-antivortex configurations in mesoscopic superconductors by engineered pinning
    Geurts, R.
    Milosevic, M. V.
    Peeters, F. M.
    [J]. PHYSICAL REVIEW B, 2007, 75 (18):
  • [6] Symmetric and asymmetric vortex-antivortex molecules in a fourfold superconducting geometry
    Geurts, R.
    Milosevic, M. V.
    Peeters, F. M.
    [J]. PHYSICAL REVIEW LETTERS, 2006, 97 (13)
  • [7] Evidence for a different type of vortex that mediates a continuous fluxoid-state transition in a mesoscopic superconducting ring
    Kanda, A.
    Baelus, B. J.
    Vodolazov, D. Y.
    Berger, J.
    Furugen, R.
    Ootuka, Y.
    Peeters, F. M.
    [J]. PHYSICAL REVIEW B, 2007, 76 (09):
  • [8] Experimental evidence for giant vortex states in a mesoscopic superconducting disk
    Kanda, A
    Baelus, BJ
    Peeters, FM
    Kadowaki, K
    Ootuka, Y
    [J]. PHYSICAL REVIEW LETTERS, 2004, 93 (25)
  • [9] Critical currents in quasiperiodic pinning arrays: Chains and penrose lattices
    Misko, V
    Savel'ev, S
    Nori, F
    [J]. PHYSICAL REVIEW LETTERS, 2005, 95 (17)
  • [10] Stable vortex configurations in superconducting 2x2 antidot clusters
    Puig, T
    Rosseel, E
    Baert, M
    VanBael, MJ
    Moshchalkov, VV
    Bruynseraede, Y
    [J]. APPLIED PHYSICS LETTERS, 1997, 70 (23) : 3155 - 3157
12