Influence of magnetism on superconductivity in epitaxial Fe/Nb bilayer systems

被引：67

作者：

Muhge, T ^{[1
]}

Theis-Brohl, K

Westerholt, K

Zabel, H

Garif'yanov, NN

Goryunov, YV

Garifullin, IA

Khaliullin, GG

机构：

[1] Ruhr Univ Bochum, Inst Expt Phys Festkorperphys, D-44780 Bochum, Germany

[2] Russian Acad Sci, Kazan Physicotech Inst, Kazan 420029, Russia

[3] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.57.5071

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied the superconductivity of molecular-beam-epitaxy-grown epitaxial Nb(110) thin films covered by Fe(110) monocrystalline layers with thicknesses d(Fe) between 4 and 30 Angstrom. We find a nonmonotonous dependence of the superconducting transition temperature T-c on d(Fe), however, without a maximum in T-c(d(Fe)) as observed earlier in Nb/Fe layers prepared by sputtering techniques. We argue that the change in the T-c(d(Fe)) curve is caused by a smaller thickness of the nonmagnetic Fe-rich interlayer at the Nb/Fe interface and can be explained within the same model developed previously for the explanation of the maximum in T-c(d(Fe)) in sputtered Nb/Fe layers.

引用

页码：5071 / 5074

页数：4

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