Influences of non-uniformities and anisotropies on the flux avalanche behaviors of type-II superconducting films

doi:10.1088/0953-2048/29/10/105001

	Influences of non-uniformities and anisotropies on the flux avalanche behaviors of type-II superconducting films
	Jing, Ze; Yong, Huadong; Zhou, Youhe; Zhou, YH (reprint author), Xidian Univ, Sch Mechanoelect Engn, Res Ctr Appl Mech, Xian 710071, Shaanxi, Peoples R China.; Zhou, YH (reprint author), Lanzhou Univ, Minist Educ China, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Gansu, Peoples R China.; Zhou, YH (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Dept Mech & Engn Sci, Lanzhou 730000, Gansu, Peoples R China.
刊名	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
	2016-08-12
卷号	29 期号:10 页码:1-13
关键词	superconductor flux avalanches non-uniformity critical current anisotropy numerical simulation
ISSN号	0953-2048
DOI	10.1088/0953-2048/29/10/105001
文献子类	Article
英文摘要	In this paper, the anisotropic flux avalanche processes in thin square- shaped type- II superconducting films are numerically investigated by solving the coupled nonlinear Maxwell's equations and the thermal diffusion equations. Influences of the non- uniformities and intrinsic critical current density anisotropies originate from the manufacturing process are considered in the simulation. In addition, we also studied the effect of the extrinsic anisotropy induced by the in- plane magnetic field. The results demonstrate that the non- uniformities and anisotropies of the critical current density play significant roles in the flux avalanche process of the thin film superconductors. Slight anisotropy ( either intrinsic or extrinsic) can dramatically change the propagation direction of avalanches in the superconducting film, which is consistent with the experimental results. Simulations on the thin square- shaped isotropic superconducting films show that the threshold magnetic field for the flux avalanches increases with the angle between the applied field and the superconducting film- plane. In addition, the flux avalanche patterns change with the angular variation of the in- plane component of external magnetic field. When the in- plane magnetic field component is along the diagonal lines of the superconducting square, symmetric flux avalanche penetration patterns occur to the film.
学科主题	Physics
出版地	BRISTOL
资助项目	国家自然科学基金项目 ; 国家磁约束核聚变能发展研究专项 ; 新世纪优秀人才支持计划
项目编号	National Natural Science Foundation of China [11327802, 11202087, 11472120, 11421062, 11572232] ; National Key Project of Magneto-Constrained Fusion Energy Development Program [2013GB110002] ; Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-13-0266] ; Fundamental Research Funds for the Central Universities [JB160404]
语种	英语
WOS记录号	WOS:000397716500001
资助机构	NSFC ; MOST ; MOE
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182550]
专题	土木工程与力学学院_期刊论文
通讯作者	Zhou, YH (reprint author), Xidian Univ, Sch Mechanoelect Engn, Res Ctr Appl Mech, Xian 710071, Shaanxi, Peoples R China.; Zhou, YH (reprint author), Lanzhou Univ, Minist Educ China, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Gansu, Peoples R China.; Zhou, YH (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Dept Mech & Engn Sci, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Jing, Ze,Yong, Huadong,Zhou, Youhe,et al. Influences of non-uniformities and anisotropies on the flux avalanche behaviors of type-II superconducting films[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2016,29(10):1-13.
APA	Jing, Ze,Yong, Huadong,Zhou, Youhe,Zhou, YH ,Zhou, YH ,&Zhou, YH .(2016).Influences of non-uniformities and anisotropies on the flux avalanche behaviors of type-II superconducting films.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,29(10),1-13.
MLA	Jing, Ze,et al."Influences of non-uniformities and anisotropies on the flux avalanche behaviors of type-II superconducting films".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 29.10(2016):1-13.