Electrical and Thermal Modulation of the Propagation Time in Superconducting Spiral Lines by Optoelectronic Techniques

Title
Electrical and Thermal Modulation of the Propagation Time in Superconducting Spiral Lines by Optoelectronic Techniques
Authors
이천
Keywords
Microstrip, Progpagation, Thin Films, Transmission Lines
Issue Date
2001
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Series/Report no.
IEEE Transactions on Applied Superconductivity Mar2001 Part 1 of 3; Vol.11 No.1
Abstract
Current and temperature controlled delays in the propagation time of electrical pulses in YBa2Cu3O7-x (YBCO) spiral transmission lines have been investigated by using optoelectronic techniques. The transmission lines are configured in a stripline geometry, where the central strip consists of a thin fil of YBCO embedded in LaAlO3. The propagation time of electrical pulses through the spiral transmission lines is measured using electrical autocorrelation techniques making use of semiconductor optical switches. The measured propagation time shows a quadratic dependence on the applied current, which is in good agreement with the Ginzburg-Landau theory. As the temperature increases, a gradual increase in pulse width and a delay in the propagation time of electrical pulses are observed. The results are used to determine the actual temperature-dependent function of the magnetic penetration depth of YBCO spiral line.
URI
http://dspace.inha.ac.kr/handle/10505/29420
ISSN
1051-8223
Appears in Collections:
College of Engineering(공과대학) > Electrical Engineering (전기공학) > Local Access Journal, Report (전기공학 논문, 보고서)

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