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| THPB078 |
Fabrication of Large-area MgB2 Films on Copper Substrates |
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- X. Guo, K.X. Liu, Z. Ni
PKU, Beijing, People's Republic of China
- Q. Feng, C. Yang
Peking University, Beijing, People's Republic of China
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Magnesium diboride (MgB2) is a promising candidate material for SRF cavities because of its higher transition temperature and critical field compared with niobium. To meet the demand of RF test devices, the fabrication of large-area MgB2 films on metal substrates is needed. In this work, MgB2 films with 50-mm diameter were fabri-cated on Cu substrates by using an improved HPCVD setups at Peking University. The transition temperatures of MgB2 film on Cu substrate and with Mo buffer layer on Cu substrate are 36.2 K and 36.5 K, respectively. The fabrication processes, surface morphology, superconduct-ing properties of these large-area MgB2 films are present-ed.
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reference for this paper
※ https://doi.org/10.18429/JACoW-SRF2017-THPB078
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