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
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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. |
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