Korotash I. Kinetic phenomenon's and nonequilibrium effects in high-temperature superconductors YBa2Cu3O7-d narrow films

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0404U004618

Thesis Registration Form

0404U004618.pdf

Applicant for

Specialization

  • 01.04.22 - Надпровідність

24-11-2004

Specialized Academic Board

Д 26.168.02

G. V. Kurdyumov IMPh of the N.A.S.U.

Essay

Spatially inhomogeneous structures on the basis of quasimonocrystalline YBCO thin-films was investigated under an effect of a transport current and microwave radiation. It was founded the subharmonic structure and anisotropy of YBCO energy-gap, and also singularity in an energy spectrum at small voltages in wide microbridges. The interaction of microbridges with a microwave electromagnetic radiation was investigated and the stimulation effect of critical and superconducting currents was founded. It was showed, that the electrophysical performances of HTS narrow-films in microwave differ from performances of wide-films. YBCO narrow-films in microstrip resonators was investigated. The hybrid integrated bandpass filter was generated on the basis of YBCO films on sapphire (passbandwidth Df " 4,5% f0, center frequency f0 ~ 1700 МГц).

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