Transport Properties of YBCO Nanowires

Author

Nawaz, Shahid ; Bauch, Thilo ; Lombardi, Floriana

Author_Institution

Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

164

Lastpage

167

Abstract

We have carried out transport studies of YBa₂Cu₃O_7-x (YBCO) nanowires. By exposing nanowires with microwaves, we see that short wires which have a flux-flow like current-voltage characteristic (IVC) clearly manifest current steps in the IVC (Shapiro steps). On the contrary, the longer wires exhibiting a resistively and capacitively shunted junction (RCSJ) model like current-voltage characteristic do not feature any Shapiro steps. The second case can be explained by taking into consideration the longer wire lengths where the wires loose coherency of flux flow due to inhomogeneity along the wire.

Keywords

nanowires; superconducting materials; Shapiro steps; YBCO nanowires; YBa₂Cu₃O_7-x; current-voltage characteristic; flux flow; resistively and capacitively shunted junction; transport property; Microwave measurements; Nanowires; Superconducting microwave devices; Temperature measurement; Wires; Yttrium barium copper oxide; Abrikosov vortices; flux flow; high-temperature superconductors; phase slips; shapiro steps; superconducting filaments and wires;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2102324

Filename

5710674