### Abstract

The intrinsic microwave surface impedance for a nearly ferroelectric superconducting film of finite thickness in the dielectric-like response is theoretically investigated. It is based on the electrodynamics of a nearly ferroelectric superconductor that incorporates the Maxwell's equations, the lattice equations for an ionic lattice, and the superconducting London equation as well. It is found that the surface resistance will be enhanced with decreasing the film thickness when the thickness is less than the London penetration depth. However it will begin to resonate as a function of film thickness at the thickness being more than one London penetration depth. The anomalous resonance peaks occur when the thickness equals the even multiple of the London penetration depth. In the frequency-dependent surface resistance, the number of the resonance peaks is strongly dependent on the film thickness, increasing with increasing the thickness. In addition, these peaks are not regularly spaced at a fixed interval. Discussion on this anomaly in the surface resistance will be given.

Original language | English |
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Title of host publication | Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo |

Publisher | Electromagnetics Academy |

Pages | 575-579 |

Number of pages | 5 |

ISBN (Print) | 9781629939513 |

Publication status | Published - 2006 Jan 1 |

Event | Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo - Tokyo, Japan Duration: 2006 Aug 2 → 2006 Aug 5 |

### Other

Other | Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo |
---|---|

Country | Japan |

City | Tokyo |

Period | 06/8/2 → 06/8/5 |

### Fingerprint

### ASJC Scopus subject areas

- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials

### Cite this

*Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo*(pp. 575-579). Electromagnetics Academy.

**Microwave surface impedance of a nearly ferroelectric superconductor.** / Wu, Chien-Jang; Fu, Chao Ming; Yang, Tzong Jer.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo.*Electromagnetics Academy, pp. 575-579, Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo, Tokyo, Japan, 06/8/2.

}

TY - GEN

T1 - Microwave surface impedance of a nearly ferroelectric superconductor

AU - Wu, Chien-Jang

AU - Fu, Chao Ming

AU - Yang, Tzong Jer

PY - 2006/1/1

Y1 - 2006/1/1

N2 - The intrinsic microwave surface impedance for a nearly ferroelectric superconducting film of finite thickness in the dielectric-like response is theoretically investigated. It is based on the electrodynamics of a nearly ferroelectric superconductor that incorporates the Maxwell's equations, the lattice equations for an ionic lattice, and the superconducting London equation as well. It is found that the surface resistance will be enhanced with decreasing the film thickness when the thickness is less than the London penetration depth. However it will begin to resonate as a function of film thickness at the thickness being more than one London penetration depth. The anomalous resonance peaks occur when the thickness equals the even multiple of the London penetration depth. In the frequency-dependent surface resistance, the number of the resonance peaks is strongly dependent on the film thickness, increasing with increasing the thickness. In addition, these peaks are not regularly spaced at a fixed interval. Discussion on this anomaly in the surface resistance will be given.

AB - The intrinsic microwave surface impedance for a nearly ferroelectric superconducting film of finite thickness in the dielectric-like response is theoretically investigated. It is based on the electrodynamics of a nearly ferroelectric superconductor that incorporates the Maxwell's equations, the lattice equations for an ionic lattice, and the superconducting London equation as well. It is found that the surface resistance will be enhanced with decreasing the film thickness when the thickness is less than the London penetration depth. However it will begin to resonate as a function of film thickness at the thickness being more than one London penetration depth. The anomalous resonance peaks occur when the thickness equals the even multiple of the London penetration depth. In the frequency-dependent surface resistance, the number of the resonance peaks is strongly dependent on the film thickness, increasing with increasing the thickness. In addition, these peaks are not regularly spaced at a fixed interval. Discussion on this anomaly in the surface resistance will be given.

UR - http://www.scopus.com/inward/record.url?scp=84901702992&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84901702992&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84901702992

SN - 9781629939513

SP - 575

EP - 579

BT - Progress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo

PB - Electromagnetics Academy

ER -