Absence of a boron isotope effect in the magnetic penetration depth of MgB2 -: art. no. 014519

被引：18
作者：
Di Castro, D
Angst, M
Eshchenko, DG
Khasanov, R
Roos, J
Savic, IM
Shengelaya, A
Bud'ko, SL
Canfield, PC
Conder, K
Karpinski, J
Kazakov, SM
Ribeiro, RA
Keller, H
机构：
[1] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland
[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[3] Univ Belgrade, Fac Phys, YU-11001 Belgrade, Serbia Monteneg
[4] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
[5] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
[6] Paul Scherrer Inst, Swiss Muon Source, CH-5232 Villigen, Switzerland
[7] ETH, Neutron Scattering Lab, CH-5232 Villigen, Switzerland
[8] ETH, Solid State Phys Lab, CH-8093 Zurich, Switzerland
来源：
PHYSICAL REVIEW B | 2004年 / 70卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.70.014519
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetic penetration depth lambda(0) in polycrystalline MgB2 for different boron isotopes (B-10/B-11) was investigated by transverse field muon spin rotation. No boron isotope effect on the penetration depth lambda(0) was found within experimental error: Deltalambda(0)/lambda(0)=0.8(8)%, suggesting that MgB2 is an adiabaic superconductor. This is in contrast to the substantial oxygen isotope effect on lambda(0) observed in cuprate high-temperature superconductors.
引用
收藏
页码：014519 / 1
页数：5
相关论文
共 41 条
  • [1] SPIN AND CHARGE BIPOLARON KINETICS OF HIGH-T(C) SUPERCONDUCTORS
    ALEXANDROV, AS
    MOTT, NF
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1994, 8 (16): : 2075 - 2109
  • [2] Nonadiabatic polaronic superconductivity in MgB2 and cuprates
    Alexandrov, AS
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2001, 363 (04): : 231 - 236
  • [3] Effective "penetration depth" in the vortex state of a D-wave superconductor
    Amin, MHS
    Franz, M
    Affleck, I
    [J]. PHYSICAL REVIEW LETTERS, 2000, 84 (25) : 5864 - 5867
  • [4] 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
  • [5] ANGST M, UNPUB, P66803
  • [6] THE THEORY OF THE MEASUREMENT OF THE LONDON PENETRATION DEPTH IN UNIAXIAL TYPE-II SUPERCONDUCTORS BY MUON SPIN ROTATION
    BARFORD, W
    GUNN, JMF
    [J]. PHYSICA C, 1988, 156 (04): : 515 - 522
  • [7] Specific heat of single crystal MgB2:: A two-band superconductor with two different anisotropies -: art. no. 257001
    Bouquet, F
    Wang, Y
    Sheikin, I
    Plackowski, T
    Junod, A
    Lee, S
    Tajima, S
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (25)
  • [8] Specific heat of Mg11B2:: Evidence for a second energy cap -: art. no. 047001
    Bouquet, F
    Fisher, RA
    Phillips, NE
    Hinks, DG
    Jorgensen, JD
    [J]. PHYSICAL REVIEW LETTERS, 2001, 87 (04) : 47001 - 1
  • [9] 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
  • [10] Polaronic origin of the isotope effect on the London penetration depth in high-temperature superconducting oxides
    Bussmann-Holder, A
    Micnas, R
    Bishop, AR
    [J]. PHILOSOPHICAL MAGAZINE, 2004, 84 (12) : 1257 - 1264
12345