Evidence for coherent structures within tokamak plasma turbulence

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	Evidence for coherent structures within tokamak plasma turbulence
	Dong, LF ; Wang, L ; Feng, CH ; Li, ZL ; Zhao, QX ; Wang, GD
刊名	PHYSICAL REVIEW E
	1998
卷号	57 期号:5 页码:5929
关键词	DRIFT-WAVE TURBULENCE EDGE TURBULENCE FLUCTUATIONS INTERMITTENCY
ISSN号	1063-651X
通讯作者	Dong, LF: Hebei Univ, Dept Phys, Baoding 071002, Peoples R China.
中文摘要	The microstructures of YBa2Cu3O7-delta/PrBa2Cu3O7-delta/YBa2Cu3O7-delta ramp type Josephson junctions with different ramp slopes fabricated on (100) SrTiO3 substrates were studied by means of transmission electron microscopy. The results show that for the ramp slope angles of 15 degrees-40 degrees, the epitaxy was still remained through all layers at the ramp region without the formation of big grain boundaries. No amorphous layers and secondary phases were observed at the barrier interfaces. For a gentle ramp junction, small misoriented grains appeared in some portions of the barrier. The substrate ramp formed during the ion etching process had little influence on the growth of the upper layers. For a steep ramp junction, a dimple was created in the substrate, which caused the bending in the film and the nucleation of misoriented grains, although the epitaxy of the barrier was of good quality. The results demonstrate that the slope angle of the junction ramp is an important factor that influences the performance of the Josephson junctions. (C) 1998 Elsevier Science B.V.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/37603]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Dong, LF,Wang, L,Feng, CH,et al. Evidence for coherent structures within tokamak plasma turbulence[J]. PHYSICAL REVIEW E,1998,57(5):5929.
APA	Dong, LF,Wang, L,Feng, CH,Li, ZL,Zhao, QX,&Wang, GD.(1998).Evidence for coherent structures within tokamak plasma turbulence.PHYSICAL REVIEW E,57(5),5929.
MLA	Dong, LF,et al."Evidence for coherent structures within tokamak plasma turbulence".PHYSICAL REVIEW E 57.5(1998):5929.