1D superconductivity in porous Nb ultrathin films

被引：1

作者：

Trezza, M. ^{[1
,2
]}

Prischepa, S. L. ^{[3
]}

Cirillo, C. ^{[1
,2
]}

Attanasio, C. ^{[1
,2
]}

机构：

[1] Univ Salerno, CNR SPIN Salerno, I-84084 Fisciano, Sa, Italy

[2] Univ Salerno, Dipartimento Fis, I-84084 Fisciano, Sa, Italy

[3] State Univ Informat & RadioElect, Minsk 220013, BELARUS

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2012年 / 479卷

关键词：

Vortex lattices; Nanowires; Porous silicon; MAGNETORESISTANCE; PB;

D O I：

10.1016/j.physc.2012.01.001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the measurements of the transport properties of superconducting Nb ultrathin bridges grown by UHV magnetron sputtering on porous Si substrates. The films are about 10 nm thick and inherit from the substrate a structure made of holes with diameter of 10 nm and interpore spacing in the range 20-40 nm. Due to their reduced dimensions, they are sensitive to thermal fluctuations typical of 1D superconductors and exhibit a nonzero resistance below the superconducting transition temperature, T-c. Clear hysteresis and finite jumps in the I-V curves are also observed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：167 / 169

页数：3

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