Study on the electromagnetic characteristics and ac loss of a spherical superconductor based on london equations
文献类型：期刊论文
| 作者 | Zhao, Shangwu1,2; Wang, Qiuliang; Cui, Chunyan1,2; Fang, Jiarong3; Yan, Luguang |
| 刊名 | Ieee transactions on applied superconductivity
 |
| 出版日期 | 2008-06-01 |
| 卷号 | 18期号:2页码:1345-1348 |
| 关键词 | Ac loss Electromagnetic analysis Meissner state Quasi-static |
| ISSN号 | 1051-8223 |
| DOI | 10.1109/tasc.2008.920814 |
| 通讯作者 | Zhao, shangwu(zhshw@mail.iee.ac.cn) |
| 英文摘要 | A spherical superconductor is fixed in a vacuum and surrounded by a harmonic magnetic field. in this paper, we analyze the electromagnetic characteristics and ac loss of the rough sphere by two steps. firstly, we regard a superconductor as a good conductor and determine the distribution of the magnetic flux density on the surface of a rough sphere. then, regarding the surface of the sphere as an infinite plane relative to the penetration depth of niobium, we solve the electromagnetic field in a thin layer in which the magnetic field penetrates. by integrating the inner product of electric field and normal current we calculate the ac loss of the rough sphere basing on maxwell equations and london equations. the results indicate that the superconductor produces ac loss when it is affected by the outside alternating magnetic field, even if it is in the meissner state. |
| WOS关键词 | II SUPERCONDUCTORS ; MEISSNER STATE ; NIOBIUM |
| WOS研究方向 | Engineering ; Physics |
| WOS类目 | Engineering, Electrical & Electronic ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000256625700304 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2393162 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhao, Shangwu |
| 作者单位 | 1.Chinese Acad Sci, Inst Elect Engn, Key Lab Appl Superconduct, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.MIT Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA |
| 推荐引用方式 GB/T 7714 | Zhao, Shangwu,Wang, Qiuliang,Cui, Chunyan,et al. Study on the electromagnetic characteristics and ac loss of a spherical superconductor based on london equations[J]. Ieee transactions on applied superconductivity,2008,18(2):1345-1348. |
| APA | Zhao, Shangwu,Wang, Qiuliang,Cui, Chunyan,Fang, Jiarong,&Yan, Luguang.(2008).Study on the electromagnetic characteristics and ac loss of a spherical superconductor based on london equations.Ieee transactions on applied superconductivity,18(2),1345-1348. |
| MLA | Zhao, Shangwu,et al."Study on the electromagnetic characteristics and ac loss of a spherical superconductor based on london equations".Ieee transactions on applied superconductivity 18.2(2008):1345-1348. |
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来源：中国科学院大学
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