Microwave properties of a composite superconducting structure in the mixed state

Chien Jang Wu

doi:10.1016/S0921-4534(98)00337-2

Microwave properties of a composite superconducting structure in the mixed state

Chien Jang Wu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A theoretical study on microwave properties of a composite layered structure of twin high-T_c 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
Pages (from-to)	293-300
Number of pages	8
Journal	Physica C: Superconductivity and its Applications
Volume	305
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(98)00337-2
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

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10.1016/S0921-4534(98)00337-2

Cite this

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title = "Microwave properties of a composite superconducting structure in the mixed state",

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.",

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author = "Wu, \{Chien Jang\}",

note = "Funding Information: Valuable discussion with Professor T.J. Yang is greatly appreciated. The work is supported by the National Science Council of the Republic of China under the contract no. NSC-87-2112-M-150-001. ",

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T1 - Microwave properties of a composite superconducting structure in the mixed state

AU - Wu, Chien Jang

N1 - Funding Information: Valuable discussion with Professor T.J. Yang is greatly appreciated. The work is supported by the National Science Council of the Republic of China under the contract no. NSC-87-2112-M-150-001.

PY - 1998/9/1

Y1 - 1998/9/1

N2 - 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.

AB - 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.

KW - Microwave

KW - Mixed state

KW - Multilayers

KW - Penetration depth

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UR - https://www.scopus.com/pages/publications/0347573981#tab=citedBy

U2 - 10.1016/S0921-4534(98)00337-2

DO - 10.1016/S0921-4534(98)00337-2

M3 - Article

AN - SCOPUS:0347573981

SN - 0921-4534

VL - 305

SP - 293

EP - 300

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 3-4

ER -

Microwave properties of a composite superconducting structure in the mixed state

Abstract

Keywords

ASJC Scopus subject areas

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