Extreme vortex pinning in the noncentrosymmetric superconductor CePt3Si

被引：11

作者：

Miclea, C. F. ^{[1
,2
]}

Mota, A. C. ^{[1
,3
]}

Nicklas, M. ^{[1
]}

Cardoso, R. ^{[1
]}

Steglich, F. ^{[1
]}

Sigrist, M. ^{[4
]}

Prokofiev, A. ^{[5
]}

Bauer, E. ^{[5
]}

机构：

[1] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

[2] Natl Inst Mat Phys, Bucharest 077125, Romania

[3] ETH, Solid State Lab, CH-8093 Zurich, Switzerland

[4] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland

[5] Vienna Univ Technol, Inst Festkorperphys, A-1040 Vienna, Austria

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 01期

关键词：

SYSTEM; STATE;

D O I：

10.1103/PhysRevB.81.014527

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the vortex dynamics of a single crystal of the noncentrosymmetric heavy-fermion superconductor CePt3Si. Decays of the remnant magnetization display a logarithmic time dependence with rates that follow the temperature dependence expected from the Kim-Anderson theory. The creep rates are lower than observed in any other centrosymmetric superconductor and are not caused by high critical currents. On the contrary, the critical current in CePt3Si is considerably lower than in other superconductors with strong vortex pinning indicating that an alternative impediment on the flux-line motion might be at work in this superconductor.

引用

页数：5

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