Electrical and thermal modulation of the propagation time in superconducting spiral lines by optoelectronic techniques

Authors
Citation
S. Cho et C. Lee, Electrical and thermal modulation of the propagation time in superconducting spiral lines by optoelectronic techniques, IEEE APPL S, 11(1), 2001, pp. 127-130
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN journal
1051-8223 → ACNP
Volume
11
Issue
1
Year of publication
2001
Part
1
Pages
127 - 130
Database
ISI
SICI code
1051-8223(200103)11:1<127:EATMOT>2.0.ZU;2-Y
Abstract
Current and temperature controlled delays in the propagation time of electr ical pulses in YBa2Cu3O7-x (YBCO) spiral transmission lines have been inves tigated by using optoelectronic techniques. The transmission lines are conf igured in a stripline geometry, where the central strip consists of a thin film of YBCO embedded in LaAlO3. The propagation time of electrical pulses through the spiral transmission lines is measured using electrical autocorr elation techniques making use of semiconductor optical switches, The measur ed propagation time shows a quadratic dependence on the applied current, wh ich is in good agreement with the Ginzburg-Landau theory. As the temperatur e increases, a gradual increase in pulse width and a delay in the propagati on time of electrical pulses are observed, The results are used to determin e the actual temperature-dependent function of the magnetic penetration dep th of YBCO spiral lines.