Reentrant superconductivity in Nb/Cu1-xNix bilayers

被引：110

作者：

Zdravkov, V. ^{[1
]}

Sidorenko, A.

Obermeier, G.

Gsell, S.

Schreck, M.

Mueller, C.

Horn, S.

Tidecks, R.

Tagirov, L. R.

机构：

[1] Moldavian Acad Sci, Inst Appl Phys, LISES, Kishinev 2028, Moldova

[2] Univ Augsburg, Inst Phys, D-86159 Augsburg, Germany

[3] Kazan VI Lenin State Univ, Solid State Phys Dept, Kazan 420008, Russia

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.97.057004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the first observation of a pronounced reentrant superconductivity phenomenon in a superconductor/ferromagnet layered system. The results were obtained using a superconductor/ferromagnetic-alloy bilayer of Nb/Cu1-xNix. The superconducting transition temperature T-c drops sharply with increasing thickness d(CuNi) of the ferromagnetic layer, until complete suppression of superconductivity is observed at d(CuNi)approximate to 4 nm. Increasing the Cu1-xNix layer thickness further, superconductivity reappears at d(CuNi)>= 13 nm. Our experiments give evidence for the pairing function oscillations associated with a realization of the quasi-one-dimensional Fulde-Ferrell-Larkin-Ovchinnikov-like state in the ferromagnetic layer.

引用

页数：4

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