纳米科学交叉模式的实验教学探究

纳米科学融合了物理、化学等基础学科的知识, 具有较强的学科交叉性。利用自制的磁场诱导超声喷雾制备颗粒膜实验装置, 在磁场诱导下制备了具有形状可控的Fe3O4纳米颗粒膜。利用本实验装置可进行开放性的综合大学物理、化学实验教学, 这对当今物理及化学实验教学改革起到一定的推动作用。     

Fabrication of Al air-bridge on coplanar waveguide

Superconducting coplanar waveguide(CPW) can be widely used as two-dimensional(2 D) resonator, transmission line or feedline, providing an important component for superconducting quantum circuit which is a promising candidate for quantum information processing. Due to the discontinuities and asymmetries in the ground planes, CPW usually exhibits the spurious resonance, which is a common source of decoherence in circuit quantum electrodynamics experiments. To mitigate the spurious resonance, we fabricated superconducting aluminum air-bridges on Nb CPW. The fabricated airbridges are approximately 3 m high and up to 120 m long. Compared with other methods, the fabrication procedures of our air-bridges are simpler, and the air-bridge can withstand strong ultrasound.