Superconductivity of a Sn film controlled by an array of Co nanowires

Superconducting properties of a hybrid structure composed of ferromagnetic Co nanowire arrays and a superconducting Sn film have been investigated. Ordered Co nanowires arrays with 60 nm, 150 nm and 200 nm diameter were electroplated into the pores of self organized Anodic Aluminum Oxide (AAO) membr...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2012-09, Vol.479, p.41-44
Main Authors: WEI, Z, YE, Z, RATHNAYAKA, K. D. D, LYUKSYUTOV, I. F, WU, W, NAUGLE, D. G
Format: Article
Language:English
Subjects:
Aluminum oxide
Anodic
Arrays
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Critical currents
Exact sciences and technology
Film thickness
Hysteresis
Mesoscopic and nanoscale systems
Nanowires
Physics
Properties of type I and type II superconductors
Superconducting films and low-dimensional structures
Superconductivity
Tin
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Summary:Superconducting properties of a hybrid structure composed of ferromagnetic Co nanowire arrays and a superconducting Sn film have been investigated. Ordered Co nanowires arrays with 60 nm, 150 nm and 200 nm diameter were electroplated into the pores of self organized Anodic Aluminum Oxide (AAO) membranes. Hysteretic dependence of the Sn film superconducting properties on applied magnetic field and critical current enhancement at moderate fields has been observed. This behavior strongly depends on the ratio of the Sn film thickness to the Co nanowire diameter.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2011.12.027