High frequency characterization of high temperature superconductors

2003 ◽  
Author(s):  
J.T. Williams ◽  
S.A. Long ◽  
J.C. Wolfe ◽  
D.R. Jackson ◽  
D.R. Wilton
Keyword(s):  
High Temperature ◽  
High Frequency ◽  
High Temperature Superconductors

scholarly journals Fabrication of Superconducting Nanowires Using the Template Method

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1970
Author(s):  
Michael Rudolf Koblischka ◽  
Anjela Koblischka-Veneva
Keyword(s):  
High Temperature ◽  
High Temperature Superconductors ◽  
Sol Gel ◽  
Template Method ◽  
Aao Template ◽  
Superconducting Nanowires ◽  
Research Directions ◽  
Templating Method ◽  
Fabrication And Characterization

The fabrication and characterization of superconducting nanowires fabricated by the anodic aluminium oxide (AAO) template technique has been reviewed. This templating method was applied to conventional metallic superconductors, as well as to several high-temperature superconductors (HTSc). For filling the templates with superconducting material, several different techniques have been applied in the literature, including electrodeposition, sol-gel techniques, sputtering, and melting. Here, we discuss the various superconducting materials employed and the results obtained. The arising problems in the fabrication process and the difficulties concerning the separation of the nanowires from the templates are pointed out in detail. Furthermore, we compare HTSc nanowires prepared by AAO templating and electrospinning with each other, and give an outlook to further research directions.

High-Frequency Vortex Critical Dynamics of Superconducting Amorphous Mo3Si Films

1997 ◽  
Vol 11 (18) ◽  
pp. 2141-2155 ◽  
Author(s):  
N.-C. Yeh ◽  
U. Kriplani ◽  
W. Jiang ◽  
J. Kumar ◽  
H. F. Fong ◽  
...  
Keyword(s):  
High Temperature ◽  
Vortex Dynamics ◽  
High Frequency ◽  
High Temperature Superconductors ◽  
Three Dimensional ◽  
Critical Dynamics ◽  
Glass Transitions ◽  
Static Disorder ◽  
Type Ii Superconductors ◽  
Si Films

The effects of static disorder on the vortex dynamics of type-II superconductors are investigated by comparing the high-frequency vortex response of superconducting amorphous Mo3Si (a- Mo3Si ) films with that of the high-temperature superconductors. We find that for a- Mo3Si films in the three-dimensional limit, the microwave vortex response near the second-order vortex-solid to vortex-liquid glass transitions is consistent with vortex critical relaxation, in contrast to the diffusion vortex dynamics in high-temperature superconductors at the same frequencies. The observation of microwave vortex critical dynamics in a- Mo3Si is attributed to the extremely disordered nature of the amorphous superconductors, which results in a much shorter-range vortex correlation and therefore a faster critical relaxation.

Microwave device applications and high-frequency electrodynamics of high-temperature superconductors

1996 ◽  
Author(s):  
Dong H. Wu ◽  
Mark Santer ◽  
James C. Booth ◽  
Julia Phillips ◽  
Steven M. Anlage
Keyword(s):  
High Temperature ◽  
High Frequency ◽  
High Temperature Superconductors ◽  
Microwave Device ◽  
Device Applications

Growth and Characterization of HTSc Nanowires and Nanoribbons

2017 ◽  
Author(s):  
M.R. Koblischka
Keyword(s):  
High Temperature ◽  
High Temperature Superconductors ◽  
Building Blocks ◽  
Film Material ◽  
Electric Transport ◽  
Superconducting Nanowires ◽  
Superconducting Cuprates ◽  
High Temperature Superconducting ◽  
Transport Measurements

This article describes the fabrication of high-temperature superconducting nanowires and their characterization by magnetic and electric transport measurements. In the literature, nanowires of high-temperature superconductors (HTSc) are obtained by means of lithography, using thin film material as a base. However, there are two main problems with this approach: first, the substrate often influences the HTSc nanowire, and second, only electric transport measurements can be performed. This article explains how nanowires and nanobelts of high-temperature superconducting cuprates can be prepared by the template method and by electrospinning. It also considers the possibilities for employing substrate-free HTSc nanowires as building blocks to realize new, nanoporous bulk superconducting materials for a variety of applications.

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