YBa2Cu3O7-delta Superconducting Films Prepared by Low Pressure Post-annealing

	YBa2Cu3O7-delta Superconducting Films Prepared by Low Pressure Post-annealing
	Wang LH(王连红); Liu C(刘崇); Fan J(樊菁); Wang, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
会议录名称	PROCEEDINGS OF THE 29TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS
	2014
会议名称	29th International Symposium on Rarefi ed Gas Dynamics (RGD)
会议日期	JUL 13-18, 2014
会议地点	Xian, PEOPLES R CHINA
摘要	YBa2Cu3O7-delta precursor films are deposited on 2 '' LaAlO3 wafer by the co-evaporation technique using Y, BaF2 and Cu as evaporation sources. After deposition, the films are annealed at low-pressure atmosphere with the composition of oxygen and water vapour. Compared with the normal pressure annealing, it is shown that low pressure can greatly improve the superconducting properties of 2 '' YBCO films with thickness larger than 500 nm, as the microcrack on films surface becomes unobservable the microwave surface resistance is greatly reduced. Furthermore, it is also revealed that the optimal processing window for making high quality superconducting YBCO films through ex-situ process is relatively small, therefore the ambient in annealing furnace is crucial important and should be precisely controlled.
WOS记录号	WOS:000346083400059
课题组名称	LHD微尺度和非平衡流动
ISBN号	978-0-7354-1265-1
URL	查看原文
收录类别	CPCI-S
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58866
专题	高温气体动力学国家重点实验室
通讯作者	Wang, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Wang LH,Liu C,Fan J,et al. YBa2Cu3O7-delta Superconducting Films Prepared by Low Pressure Post-annealing[C]PROCEEDINGS OF THE 29TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS,2014.

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