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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 [J].
ALEXANDROV, AS ;
MOTT, NF .
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1994, 8 (16) :2075-2109
[2]   Nonadiabatic polaronic superconductivity in MgB2 and cuprates [J].
Alexandrov, AS .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2001, 363 (04) :231-236
[3]   Effective "penetration depth" in the vortex state of a D-wave superconductor [J].
Amin, MHS ;
Franz, M ;
Affleck, I .
PHYSICAL REVIEW LETTERS, 2000, 84 (25) :5864-5867
[4]   Temperature and field dependence of the anisotropy of MgB2 -: art. no. 167004 [J].
Angst, M ;
Puzniak, R ;
Wisniewski, A ;
Jun, J ;
Kazakov, SM ;
Karpinski, J ;
Roos, J ;
Keller, H .
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 [J].
BARFORD, W ;
GUNN, JMF .
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 [J].
Bouquet, F ;
Wang, Y ;
Sheikin, I ;
Plackowski, T ;
Junod, A ;
Lee, S ;
Tajima, S .
PHYSICAL REVIEW LETTERS, 2002, 89 (25)
[8]   Specific heat of Mg11B2:: Evidence for a second energy cap -: art. no. 047001 [J].
Bouquet, F ;
Fisher, RA ;
Phillips, NE ;
Hinks, DG ;
Jorgensen, JD .
PHYSICAL REVIEW LETTERS, 2001, 87 (04) :47001-1
[9]   Boron isotope effect in superconducting MgB2 [J].
Bud'ko, SL ;
Lapertot, G ;
Petrovic, C ;
Cunningham, CE ;
Anderson, N ;
Canfield, PC .
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 [J].
Bussmann-Holder, A ;
Micnas, R ;
Bishop, AR .
PHILOSOPHICAL MAGAZINE, 2004, 84 (12) :1257-1264
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