Electrically tunable YBa2Cu3Oy resonators using interdigital electrodes and dielectric film

Fuke, Hiroyuki; Terashima, Yutaka; Kayano, Hiroyuki; Yoshino, Hisashi

doi:10.1016/s0921-4534(00)00251-3

Cited by 8 publications

(8 citation statements)

References 26 publications

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“…The permittivity is affected by electric fields, and below 4 K it can be lowered by more than 1 order of magnitude for a field of about 2 MV/m [11,12]. The gate-tunability of the dielectric constant of SrTiO 3 , particularly in thin-film form, has been used in applications of resonators incorporating SrTiO 3 for voltage-controlled microwave filters [13][14][15][16][17][18]. Beyond applications, one can also envision using superconducting resonators for sensing and exploring the dielectric properties of SrTiO 3 itself, similar to the application of superconducting cavities to probe qubits, spin ensembles, and magnetic excitations.…”

Section: Introductionmentioning

confidence: 99%

Quantum paraelectricity probed by superconducting resonators

et al. 2017

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Superconducting coplanar waveguide (CPW) resonators are powerful and versatile tools used in areas ranging from radiation detection to circuit quantum electrodynamics. Their potential for low intrinsic losses makes them attractive as sensitive probes of electronic properties of bulk materials and thin films. Here we use superconducting MoRe CPW resonators to investigate the high-frequency (up to 0.3 GHz) and low-temperature (down to 3.5 K) permittivity of SrTiO 3 , a nonlinear dielectric on the verge of a ferroelectric transition (quantum paraelectricity). We perform a quantitative analysis of its dielectric properties as a function of external dc bias (up to ±15 V), rf power, and mode number and discuss our results within the framework of the most recent theoretical models. We also discuss the origin of a fatigue effect that reduces the tunability of the dielectric constant of SrTiO 3 , which we relate to the presence of oxygen vacancies.

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Section: Introductionmentioning

confidence: 99%

Quantum paraelectricity probed by superconducting resonators

et al. 2017

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“…Therefore, we investigated experimentally. Concerning our previous work on resonators, the loss of the resonator decreased with an increase of the separation between the electrodes and a decrease of the thickness of the electrode [21]. Moreover, additional experiments revealed that the loss decreases with a decrease of both the line width of the electrodes and the number of the pairs of electrodes.…”

Section: ) Refining Of the Frequency Response Of The Tunable Filtermentioning

confidence: 72%

“…In our previous work, we adopted the electrical tuning method because this method has faster tuning speed and lower power consumption, and proposed a novel electrical tuning method. We fabricated tunable resonators using interdigital electrodes and a dielectric film on a half-wavelength microstrip line resonator and demonstrated their tuning properties [20], [21]. In the work reported in this paper, we have fabricated a multi-pole filter and examined a discrepancy between the designed and the measured frequency response.…”

Section: Introducttonmentioning

confidence: 99%

Tuning properties of 2 GHz superconducting microstrip-line filters

Fuke

Terashima

Kayano

et al. 2001

IEEE Trans. Appl. Supercond.

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We have fabricated a 2 GHz 12-pole superconducting microstrip line filter and a 2-pole electrically tunable filter using interdigital electrodes and dielectric film. The change of the dielectric constant of a SrTi03 film, stacked on the filter, by applying a bias voltage between the electrodes leads to the tunability. The range of the center frequency modulation was 13 MHz (0.7 %) at 60 K, 75 kV/cm. The microwave frequency response was improved by modification of the electrode structure. This tuning method is considered to be promising in that individual resonance elements in multi-pole filters can be tuned independently.

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“…All-optical switching [6], logic NOR function [7] and all-optical inverted and noninverted wavelength conversion [8] have been realized with a high extinction ratio higher than 12 dB over a wide range of wavelength.…”

Section: All-optical Logic or Gate Using Two Cascaded Semiconductor Omentioning

confidence: 99%

Mechanism study of mechanical tuning in HTS filter application

Peng

Zhang

Guo

et al. 2007

Micro & Optical Tech Letters

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Mechanical tuning method using sapphire and copper rods for high temperature superconducting filters is presented. A three‐pole microstrip filter and a two‐pole patch filter were fabricated and tuned. Results show that the center frequency shifts toward lower end in dielectric tuning and toward either lower end or higher end in metallic tuning depending on the local electromagnetic field distribution.© 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1565–1568, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22561

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Electrically tunable YBa2Cu3Oy resonators using interdigital electrodes and dielectric film

Cited by 8 publications

References 26 publications

Quantum paraelectricity probed by superconducting resonators

Quantum paraelectricity probed by superconducting resonators

Tuning properties of 2 GHz superconducting microstrip-line filters

Mechanism study of mechanical tuning in HTS filter application

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