Abstract
A theoretical study on microwave properties of a composite layered structure of twin high-Tc superconducting thin-films separated by a nonlinear dielectric is presented. Microwave reflectance and transmittance are calculated within the framework of the self-consistent treatment of vortex dynamics for the superconducting films in the mixed state. The effects of nonlinear field- and temperature-dependent dielectric permittivity of SrTiO3 are specifically discussed. Two significant peaks arising from nonlinearity of the permittivity are found in the temperature-dependent microwave reflectance and transmittance. As for the field-dependent microwave response, we suggest that the strongly field-dependent nonlinear permittivity of SrTiO3 at low temperature does not affect the microwave transmittance and reflectance.
Original language | English |
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Pages (from-to) | 293-300 |
Number of pages | 8 |
Journal | Physica C: Superconductivity and its applications |
Volume | 305 |
Issue number | 3-4 |
DOIs | |
Publication status | Published - 1998 Sept 1 |
Externally published | Yes |
Keywords
- Microwave
- Mixed state
- Multilayers
- Penetration depth
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering