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

页码：014519 / 1

页数：5

共 41 条

[31] Effects of boron purity, Mg stoichiometry and carbon substitution on properties of polycrystalline MgB2 [J].