论文标题
磁场弹性的制造和表征更多的超导Coclanar波导谐振器
Fabrication and Characterization of Magnetic-Field-Resilient MoRe Superconducting Coplanar Waveguide Resonators
论文作者
论文摘要
磁场弹性的超导电体波基指导（SCPW）谐振器对于开发各种量子位和量子存储器设备的集成量子电路至关重要。钼 - 衍生（More）是一种无序的超导合金，形成与石墨烯和碳纳米管（CNT）高度透明的接触（CNTS），将是一个有希望的平台，用于实现与基于石墨烯和CNT基于基于石墨烯的Nano-Hybrid Qubits结合的现场溶解剂SCPW谐振器。我们制造了更多的SCPW谐振器，并以不同的温度和外部磁场研究了其微波传输特性。我们的观察结果表明，更多薄膜的厚度是确定SCPW谐振器的较低临界场，动力电感和特性阻抗的关键参数，从而导致质量因子和谐振频率的急剧变化。结果，我们在并行磁场中获得了$ q_ {i}> 10^{4} $的最大值，最多可用于27 nm厚的更多谐振器。我们的实验结果表明，更多的SCPW谐振器将有助于整合纳米杂交旋转或gatemon Quatem Qubits和开发自旋 - 安装量子存储器设备。
Magnetic-field-resilient superconducting coplanar waveguide (SCPW) resonators are essential for developing integrated quantum circuits of various qubits and quantum memory devices. Molybdenum-Rhenium (MoRe), which is a disordered superconducting alloy forming a highly transparent contact to the graphene and carbon nanotubes (CNTs), would be a promising platform for realizing the field-resilient SCPW resonators combined with graphene- and CNT-based nano-hybrid qubits. We fabricated MoRe SCPW resonators and investigated their microwave transmission characteristics with varying temperature and external magnetic field. Our observations show that the thickness of MoRe film is a critical parameter determining the lower critical field, kinetic inductance, and characteristic impedance of the SCPW resonator, resulting in drastic changes in the quality factor and the resonance frequency. As a result, we obtained a maximum value of $Q_{i} > 10^{4}$ in parallel magnetic fields up to $B_{||} = 0.15$ T for the 27-nm-thick MoRe resonator. Our experimental results suggest that MoRe SCPW resonator would be useful for integrating nano-hybrid spin or gatemon qubits and for developing spin-ensemble quantum memory devices.
