The 78th JSAP Autumn Meeting, 2017

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Oral presentation

11 Superconductivity » 11.4 Analog applications and their related technologies

[6p-S43-1~21] 11.4 Analog applications and their related technologies

Wed. Sep 6, 2017 1:15 PM - 7:15 PM S43 (Conf. Room 3)

Toshihiko Kiwa(Okayama Univ.), Shigehito Miki(NICT), Tohru Taino(Saitama Univ.), Saburo Tanaka(Toyohashi Univ. Tech.)

5:45 PM - 6:00 PM

[6p-S43-17] Properties and analysis of superconducting resonators made of sputtered Al thin film

〇Takashi Noguchi1, Agnes Dominjon1, Yutaro Sekimoto1 (1.NAOJ)

Keywords:superconductor, resonator, microwave

Resonance properties of superconducting resonators made of a sputtered Al thin filn were mesured in detail and analyzed. It is found that at temperatures below Tc/6 the quality factor decreses monotonically with decreasing temperature due to the Kondo effect-like temperature dependence of the residual resistance. It is also shown that at temperatures below Tc/6 the kinetic inductance of quasiparticles seriously contributes to the change of resonance frequency with decreasing temperature.