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题名: Eliashberg analysis of Bi2Sr2CaCu2O8+delta intrinsic tunneling spectra
作者: Sui, XH;  Tang, H;  Zhao, SP;  Su, ZB
刊名: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
出版日期: 2015
卷号: 511, 期号:0, 页码:15-19
关键词: Bi2Sr2CaCu2O8+delta intrinsic tunneling spectra ;  Eliashberg analysis ;  Spin fluctuation
学科分类: Physics
DOI: http://dx.doi.org/10.1016/j.physc.2015.02.005
通讯作者: Sui, XH (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: Tunneling spectra of Bi2Sr2CaCu2O8+delta intrinsic Josephson junctions with different doping are analyzed and reproduced using a d-wave Eliashberg formalism in a wide temperature range below T-c from which the pairing glue spectral function alpha F-2(Omega) composed of a low-energy resonance peak and a high-energy broad spectrum is obtained. As temperature increases toward T-c, the resonance peak shows continuous decrease both in energy and in height while the broad spectrum slightly increases in height. The calculated coupling constant demonstrates an important role for pairing by the broad spectrum that originates from spin fluctuations. The gap function extracted from the analysis bears a close resemblance to the recent Hubbard and t-J model simulations. We discuss the limitations of the d-wave Eliashberg approach used in our analysis. (C) 2015 Elsevier B.V. All rights reserved.
类目[WOS]: Physics, Applied
关键词[WOS]: SUPERCONDUCTORS ;  ENERGY ;  EXCITATIONS ;  SCATTERING
收录类别: SCI
项目资助者: Ministry of Science and Technology of China [2011CBA00106, 2014CB921202] ;  National Natural Science Foundation of China [11121403, 91321208]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21029
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Sui, XH,Tang, H,Zhao, SP,et al. Eliashberg analysis of Bi2Sr2CaCu2O8+delta intrinsic tunneling spectra[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2015,511(0):15-19.
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