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题名: Probing superconducting phase fluctuations from the current noise spectrum of pseudogapped metal-superconductor tunnel junctions
作者: Dai, X ;  Xiang, T ;  Ng, TK ;  Su, ZB
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2000
卷号: 85, 期号:14, 页码:3009-3012
关键词: NORMAL-STATE ;  BI2SR2CACU2O8+DELTA ;  SCATTERING ;  PRECURSOR ;  GAP
学科分类: Physics
通讯作者: Dai, X , Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
部门归属: Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Cambridge, Isaac Newton Inst Math Sci, Cambridge CB3 0HE, England
英文摘要: We study the current noise spectra of a tunnel junction of a metal with strong pairing phase fluctuation and a superconductor. It is shown that there is a characteristic peak in the noise spectrum at the intrinsic Josephson frequency omega(J) = 2eV when omega(J) is smaller than the pairing gap but larger than the pairing scattering rate. In he presence of an ac voltage, the tunneling current noise shows a series of characteristic peaks with increasing de voltage. Experimental observation of these peaks will give direct evidence of the pair fluctuation in the normal state of high-T-c superconductors and the pair decay rate can be estimated from the half width of the peaks.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000089581400041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12896
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Dai, X,Xiang, T,Ng, TK,et al. Probing superconducting phase fluctuations from the current noise spectrum of pseudogapped metal-superconductor tunnel junctions[J]. PHYSICAL REVIEW LETTERS,2000,85(14):3009-3012.
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