The preparation of cylindrical MgB2 films on stainless steel by HPCVD for magnetic shielding
作者： Yan Zhang , Wenhao Luo , Zigeng Huang , Qingrong Feng , Zizhao Gan
DOI: 10.1016/J.PHYSC.2018.06.002
关键词: Volume reduction 、 Electromagnetic shielding 、 Composite material 、 Cryogenics 、 Superconductivity 、 Planar 、 SQUID 、 Materials science 、 Transition temperature 、 Cylinder
摘要: Abstract HT C SQUID has a great potential in ultra-weak magnetic signal detections due to its advantages of energy saving and volume reduction the overall system, including cryogenics. However, application is limited because lack proper shielding. Superconducting shielding an efficient way for SQUID. In this work, we fabricate MgB 2 thick film on stainless steel cylinder using HPCVD make preliminary attempt SMS with films. High quality deposited inner side hollowed cylinder. The transition temperature 37.5 K, critical current density 7.6 × 10 6 A⋅cm −2 at 10 K 4.6 × 10 20 K, which comparable planar effectiveness cylindrical numerical simulated. Height thickness designed according simulation result was calculated corresponding 65 dB obtained. shows feasibility as
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