Fabrication and characterization of electrically tunable high-Tc superconducting resonators incorporating barium strontium titanate as a tuning material

E. H. Lee; J. Sok; S. J. Park; J. S. Lee; I. H. Song; J. Kwak; K. R. Jung; J. Y. Kim; S. Y. Yoon; D. Y. Jeon

doi:10.1088/0953-2048/12/11/385

Fabrication and characterization of electrically tunable high-T_c superconducting resonators incorporating barium strontium titanate as a tuning material

E. H. Lee, J. Sok, S. J. Park, J. S. Lee, I. H. Song, J. Kwak, K. R. Jung, J. Y. Kim, S. Y. Yoon, D. Y. Jeon

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

We have made the electrically tunable microstrip resonators by using both high-T_c superconducting and dielectric films. The two-pole resonators employ a dielectric barium strontium titanate film on their centre in the form of flip chip. The superconducting YBa₂Cu₃O_y (YBCO) and dielectric Ba_0.1Sr_0.9TiO₃ were deposited on the CeO₂-buffered sapphire substrate and LaAlO₃ substrate, respectively, by a pulsed laser deposition technique. Variations of the relative permittivity, ε_r, and dielectric loss tangent, tan δ, of the Ba_0.1Sr_0.9TiO₃ were studied as a function of the applied dc bias at liquid-nitrogen temperature. The tunability, defined as C_{(0 V)}/C_{(100 V)}, and loss tangent of the resonators were measured to be approx. 1.9 and 1.5 × 10^-2 (at 100 V), respectively.

Original language	English
Pages (from-to)	981-984
Number of pages	4
Journal	Superconductor Science and Technology
Volume	12
Issue number	11
DOIs	https://doi.org/10.1088/0953-2048/12/11/385
State	Published - Nov 1999
Event	Proceedings of the 1999 International Superconductive Electronics Conference - Berkeley, CA, USA Duration: 21 Jun 1999 → 25 Jun 1999

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Lee, E. H., Sok, J., Park, S. J., Lee, J. S., Song, I. H., Kwak, J., Jung, K. R., Kim, J. Y., Yoon, S. Y., & Jeon, D. Y. (1999). Fabrication and characterization of electrically tunable high-T_c superconducting resonators incorporating barium strontium titanate as a tuning material. Superconductor Science and Technology, 12(11), 981-984. https://doi.org/10.1088/0953-2048/12/11/385

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title = "Fabrication and characterization of electrically tunable high-Tc superconducting resonators incorporating barium strontium titanate as a tuning material",

abstract = "We have made the electrically tunable microstrip resonators by using both high-Tc superconducting and dielectric films. The two-pole resonators employ a dielectric barium strontium titanate film on their centre in the form of flip chip. The superconducting YBa2Cu3Oy (YBCO) and dielectric Ba0.1Sr0.9TiO3 were deposited on the CeO2-buffered sapphire substrate and LaAlO3 substrate, respectively, by a pulsed laser deposition technique. Variations of the relative permittivity, εr, and dielectric loss tangent, tan δ, of the Ba0.1Sr0.9TiO3 were studied as a function of the applied dc bias at liquid-nitrogen temperature. The tunability, defined as C(0 V)/C(100 V), and loss tangent of the resonators were measured to be approx. 1.9 and 1.5 × 10-2 (at 100 V), respectively.",

author = "Lee, {E. H.} and J. Sok and Park, {S. J.} and Lee, {J. S.} and Song, {I. H.} and J. Kwak and Jung, {K. R.} and Kim, {J. Y.} and Yoon, {S. Y.} and Jeon, {D. Y.}",

year = "1999",

month = nov,

doi = "10.1088/0953-2048/12/11/385",

language = "English",

volume = "12",

pages = "981--984",

journal = "Superconductor Science and Technology",

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note = "Proceedings of the 1999 International Superconductive Electronics Conference ; Conference date: 21-06-1999 Through 25-06-1999",

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T1 - Fabrication and characterization of electrically tunable high-Tc superconducting resonators incorporating barium strontium titanate as a tuning material

AU - Lee, E. H.

AU - Sok, J.

AU - Park, S. J.

AU - Lee, J. S.

AU - Song, I. H.

AU - Kwak, J.

AU - Jung, K. R.

AU - Kim, J. Y.

AU - Yoon, S. Y.

AU - Jeon, D. Y.

PY - 1999/11

Y1 - 1999/11

N2 - We have made the electrically tunable microstrip resonators by using both high-Tc superconducting and dielectric films. The two-pole resonators employ a dielectric barium strontium titanate film on their centre in the form of flip chip. The superconducting YBa2Cu3Oy (YBCO) and dielectric Ba0.1Sr0.9TiO3 were deposited on the CeO2-buffered sapphire substrate and LaAlO3 substrate, respectively, by a pulsed laser deposition technique. Variations of the relative permittivity, εr, and dielectric loss tangent, tan δ, of the Ba0.1Sr0.9TiO3 were studied as a function of the applied dc bias at liquid-nitrogen temperature. The tunability, defined as C(0 V)/C(100 V), and loss tangent of the resonators were measured to be approx. 1.9 and 1.5 × 10-2 (at 100 V), respectively.

AB - We have made the electrically tunable microstrip resonators by using both high-Tc superconducting and dielectric films. The two-pole resonators employ a dielectric barium strontium titanate film on their centre in the form of flip chip. The superconducting YBa2Cu3Oy (YBCO) and dielectric Ba0.1Sr0.9TiO3 were deposited on the CeO2-buffered sapphire substrate and LaAlO3 substrate, respectively, by a pulsed laser deposition technique. Variations of the relative permittivity, εr, and dielectric loss tangent, tan δ, of the Ba0.1Sr0.9TiO3 were studied as a function of the applied dc bias at liquid-nitrogen temperature. The tunability, defined as C(0 V)/C(100 V), and loss tangent of the resonators were measured to be approx. 1.9 and 1.5 × 10-2 (at 100 V), respectively.

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SN - 0953-2048

VL - 12

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JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

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T2 - Proceedings of the 1999 International Superconductive Electronics Conference

Y2 - 21 June 1999 through 25 June 1999

ER -

Fabrication and characterization of electrically tunable high-T_c superconducting resonators incorporating barium strontium titanate as a tuning material

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