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Dynamic spin-response function of the high-temperature Bi2Sr2CaCu2O8+δ superconductor from angle-resolved photoemission spectra

被引：13
作者：
Chatterjee, U. [1 ]
Morr, D. K.
Norman, M. R.
Randeria, M.
Kanigel, A.
Shi, M.
Rossi, E.
Kaminski, A.
Fretwell, H. M.
Rosenkranz, S.
Kadowaki, K.
Campuzano, J. C.
机构：
[1] Univ Illinois, Dept Phys, Chicago, IL 60607 USA
[2] Argonne Natl Lab, Mat Sci Div, Argonne, IL 60439 USA
[3] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[4] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland
[5] Iowa State Univ, Ames Lab, Iowa City, IA 50011 USA
[6] Iowa State Univ, Dept Phys & Astron, Iowa City, IA 50011 USA
[7] Univ Tsukuba, Inst Sci Mat, Ibaraki 3053573, Japan
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 17期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevB.75.172504
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We introduce a formalism for calculating dynamic response functions using experimental single-particle Green's functions. As an illustration of this procedure, we estimate the dynamic spin-response of the cuprate superconductor Bi2Sr2CaCu2O8+delta. We find good agreement with superconducting state neutron data, in particular, the (pi,pi) resonance with its unusual "hourglass" shaped dispersion. We anticipate that our formalism will also be useful in interpreting results from other spectroscopies, such as optical and Raman responses.
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页数：4
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