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.
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收藏
页码：014519 / 1
页数：5
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