We have studied the electromagnetic parameters of YBa2Cu3O7 Josephson junctions fabricated on bicrystalline substrates with different angles tilted around the 100 and 001 axis. Changing a technological parameter such as the junction width permits change to the resonant frequency of the barrier cavity. This change in the resonance frequency allows one to determine a frequency dependent dispersion relation of the dielectric constant. We have explored the proximity to a resonance in the dielectric response and analyzed its resonance frequency and damping constant. In terms of a RLC circuital equivalence additional information on the inductive response is presented as a comparative study of junctions fabricated on substrates with different bicrystalline misorientations
Frequency analysis of the dielectric constant of YBa2Cu3O7 Josephson junctions fabricated on bicrystalline substrates
E Sarnelli;C Nappi
2006
Abstract
We have studied the electromagnetic parameters of YBa2Cu3O7 Josephson junctions fabricated on bicrystalline substrates with different angles tilted around the 100 and 001 axis. Changing a technological parameter such as the junction width permits change to the resonant frequency of the barrier cavity. This change in the resonance frequency allows one to determine a frequency dependent dispersion relation of the dielectric constant. We have explored the proximity to a resonance in the dielectric response and analyzed its resonance frequency and damping constant. In terms of a RLC circuital equivalence additional information on the inductive response is presented as a comparative study of junctions fabricated on substrates with different bicrystalline misorientationsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
