The global property of the dilute-to-dense transition of granular flows in a 2D channel

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	The global property of the dilute-to-dense transition of granular flows in a 2D channel
	Hou, M ; Chen, W ; Peng, Z ; Zhang, T ; Lu, K ; Chan, CK
刊名	Traffic and Granular Flow '03
	2005
页码	559
中文摘要	The dependences of magnetic field penetration depth at zero temperature lambda(0), microwave surface resistance R-s and pi -band energy gap at zero temperature Delta(pi)(0) on the normal-state resistivity fight above the critical, rho(0), were studied for MgB2 thin films prepared by different temperature. techniques by employing a sapphire resonator technique. We found that the zero-temperature penetration depth lambda(0) data could be well fitted by lambda(L)(1 + xi(0)/l)(1/2) yielding a London penetration depth lambda(L) of 34.5 nm, where xi(0) is the coherence length, and l is the mean free path determined from rho(0). The surface resistance R-s at 15 and 20 K increases roughly linearly with rho(0). The observed increase of Delta(pi)(0) with rho(0) and the decrease of T-c indicate the expected effects of interband impurity scattering within an extended BCS approach. The low values of R-s and lambda(0) in conjunction with the large coherence length for epitaxial films are potentially attractive for applications in electronics and microwave technology.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/45180]
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	Hou, M,Chen, W,Peng, Z,et al. The global property of the dilute-to-dense transition of granular flows in a 2D channel[J]. Traffic and Granular Flow '03,2005:559.
APA	Hou, M,Chen, W,Peng, Z,Zhang, T,Lu, K,&Chan, CK.(2005).The global property of the dilute-to-dense transition of granular flows in a 2D channel.Traffic and Granular Flow '03,559.
MLA	Hou, M,et al."The global property of the dilute-to-dense transition of granular flows in a 2D channel".Traffic and Granular Flow '03 (2005):559.