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Wang, HT; Tang, H1; Su, ZB
Quasi-particle density of states and bosonic modes in Bi2Sr2CaCu2O8+delta
发表期刊PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
语种英语
关键词HIGH-TEMPERATURE SUPERCONDUCTORS BAYESIAN-INFERENCE TUNNELING SPECTROSCOPY ANALYTIC CONTINUATION NEUTRON-SCATTERING MAXIMUM-ENTROPY PHOTOEMISSION RESONANCE
摘要The quasi-particle density of states (DOS) at temperatures from 4.2 K to high above the critical temperature T-c is obtained by inversion directly from the experimentally measured superconductor-insulator-superconductor (SIS) tunneling data performed on three different Bi2Sr2CaCu2O8+delta samples. Bosonic modes accompanying the superconductivity or related to the pseudogap, as well as their temperature-dependent energies are extracted by analyzing the fine structures exhibited in the DOS curves. Consistent with the coexistence of the two bosonic modes in the superconducting state for the optimally and underdoped samples, a kink is found in the derivative curve of the DOS with respect to the energy, which provides a kind of evidence for the coexistence of the pseudogap and superconductivity in these materials. These results shed light on the interactions between the charged carriers and the bosonic modes and may give us the fingerprints of the pairing gluons in the cuprates.
2018
ISSN0921-4534
卷号555页码:54-59
学科领域Physics
学科门类Physics, Applied ; Physics, Condensed Matter
DOI10.1016/j.physc.2018.10.014
收录类别SCIE
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22762
专题理论物理所科研产出_SCI论文
作者单位1.[Wang, Han-Ting
2.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Wang, HT,Tang, H,Su, ZB. Quasi-particle density of states and bosonic modes in Bi2Sr2CaCu2O8+delta[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2018,555:54-59.
APA Wang, HT,Tang, H,&Su, ZB.(2018).Quasi-particle density of states and bosonic modes in Bi2Sr2CaCu2O8+delta.PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,555,54-59.
MLA Wang, HT,et al."Quasi-particle density of states and bosonic modes in Bi2Sr2CaCu2O8+delta".PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 555(2018):54-59.
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