Superconducting membrane mechanical oscillator based on vacuum-gap capacitor<xref rid="cpb_27_6_060701_fn1" ref-type="fn">*</xref><fn id="cpb_27_6_060701_fn1"> <label>*</label> <p>Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0301801), the National Natural Science Foundation of China (Grant Nos. 11474154 and 61521001), and the Priority Academic Development Program of Jiangsu Higher Education Institutions and Dengfeng Project B of Nanjing University, China.</p> </fn>

Superconducting membrane mechanical oscillator based on vacuum-gap capacitor* *

Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0301801), the National Natural Science Foundation of China (Grant Nos. 11474154 and 61521001), and the Priority Academic Development Program of Jiangsu Higher Education Institutions and Dengfeng Project B of Nanjing University, China.

Li Yong-Chao^{1, 2}, Dai Xin^{1, 2, ‡}, Jiang Jun-Liang^{1, 2}, Pan Jia-Zheng^{1, 2}, Wei Xing-Yu^{1, 2}, Lu Ya-Peng^{1, 2}, Lu Sheng^{1, 2}, Tu Xue-Cou^{1, 2}, Sun Guo-Zhu^{1, 2, †}, Wu Pei-Heng^{1, 2}

(color online) (a) Blue sideband frequencies down-converted by a mixer. Nominal input power is −13 dBm. (b) Fundamental frequency and its harmonics of the mechanical resonator. Parabolic relations between input power and resonant frequency are clearly demonstrated. Experimental and fitting data are indicated by symbols and solid lines, respectively.