Microwave characteristics of YBaCuO coplanar waveguide resonators fabricated by the sol-gel process on polycrystalline MgO

Haruichi Kanaya; Tomohiko Kaneyuki; Hidehiro Senoh; Yasuo Cho; Ikuo Awai

doi:10.1143/jjap.36.6311

Microwave characteristics of YBaCuO coplanar waveguide resonators fabricated by the sol-gel process on polycrystalline MgO

Haruichi Kanaya, Tomohiko Kaneyuki, Hidehiro Senoh, Yasuo Cho, Ikuo Awai

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

5 Citations (Scopus)

Abstract

High temperature superconducting (HTS) Y-Ba-Cu-O (YBCO) films were prepared on MgO polycrystal substrates by the sol-gel process. The resistivity at DC and the surface resistance (R_s) at a microwave frequency of the films were measured. R_s was found to be highly dependent on the thickness of the films and the temperature, and the optimal value obtained for R_s was 4.2 mΩ at 40 K and 10 GHz. We also fabricated a YBCO coplanar waveguide (CPW) half-wavelength resonator around 2 GHz and compared its RF property with that of a normal metal. The incident power dependence of the transmission characteristics was observed to examine the power handling capability of the HTS resonator. As the temperature and the input power decreased, the quality factor (Q₀) of the YBCO CPW resonator improved significantly, as opposed to hardly any change of that of a normal metal.

Original language	English
Pages (from-to)	6311-6315
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	36
Issue number	10
DOIs	https://doi.org/10.1143/jjap.36.6311
Publication status	Published - 1997 Jan 1
Externally published	Yes

Keywords

Coplanar waveguide
High-temperature superconductor
Polycrystalline MgO
Resonator
Sol-gel process
Surface resistance
Y-Ba-Cu-O film

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Microwave characteristics of YBaCuO coplanar waveguide resonators fabricated by the sol-gel process on polycrystalline MgO. / Kanaya, Haruichi; Kaneyuki, Tomohiko; Senoh, Hidehiro; Cho, Yasuo; Awai, Ikuo.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 36, No. 10, 01.01.1997, p. 6311-6315.

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

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title = "Microwave characteristics of YBaCuO coplanar waveguide resonators fabricated by the sol-gel process on polycrystalline MgO",

abstract = "High temperature superconducting (HTS) Y-Ba-Cu-O (YBCO) films were prepared on MgO polycrystal substrates by the sol-gel process. The resistivity at DC and the surface resistance (Rs) at a microwave frequency of the films were measured. Rs was found to be highly dependent on the thickness of the films and the temperature, and the optimal value obtained for Rs was 4.2 mΩ at 40 K and 10 GHz. We also fabricated a YBCO coplanar waveguide (CPW) half-wavelength resonator around 2 GHz and compared its RF property with that of a normal metal. The incident power dependence of the transmission characteristics was observed to examine the power handling capability of the HTS resonator. As the temperature and the input power decreased, the quality factor (Q0) of the YBCO CPW resonator improved significantly, as opposed to hardly any change of that of a normal metal.",

keywords = "Coplanar waveguide, High-temperature superconductor, Polycrystalline MgO, Resonator, Sol-gel process, Surface resistance, Y-Ba-Cu-O film",

author = "Haruichi Kanaya and Tomohiko Kaneyuki and Hidehiro Senoh and Yasuo Cho and Ikuo Awai",

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AU - Kanaya, Haruichi

AU - Kaneyuki, Tomohiko

AU - Senoh, Hidehiro

AU - Cho, Yasuo

AU - Awai, Ikuo

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N2 - High temperature superconducting (HTS) Y-Ba-Cu-O (YBCO) films were prepared on MgO polycrystal substrates by the sol-gel process. The resistivity at DC and the surface resistance (Rs) at a microwave frequency of the films were measured. Rs was found to be highly dependent on the thickness of the films and the temperature, and the optimal value obtained for Rs was 4.2 mΩ at 40 K and 10 GHz. We also fabricated a YBCO coplanar waveguide (CPW) half-wavelength resonator around 2 GHz and compared its RF property with that of a normal metal. The incident power dependence of the transmission characteristics was observed to examine the power handling capability of the HTS resonator. As the temperature and the input power decreased, the quality factor (Q0) of the YBCO CPW resonator improved significantly, as opposed to hardly any change of that of a normal metal.

AB - High temperature superconducting (HTS) Y-Ba-Cu-O (YBCO) films were prepared on MgO polycrystal substrates by the sol-gel process. The resistivity at DC and the surface resistance (Rs) at a microwave frequency of the films were measured. Rs was found to be highly dependent on the thickness of the films and the temperature, and the optimal value obtained for Rs was 4.2 mΩ at 40 K and 10 GHz. We also fabricated a YBCO coplanar waveguide (CPW) half-wavelength resonator around 2 GHz and compared its RF property with that of a normal metal. The incident power dependence of the transmission characteristics was observed to examine the power handling capability of the HTS resonator. As the temperature and the input power decreased, the quality factor (Q0) of the YBCO CPW resonator improved significantly, as opposed to hardly any change of that of a normal metal.

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