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

TitleDynamic spin-response function of the high-temperature Bi2Sr2CaCu2O8+delta superconductor from angle-resolved photoemission spectra
Publication TypeJournal Article
Year of Publication2007
AuthorsChatterjee U, Morr DK, Norman MR, Randeria M, Kanigel A, Shi M, Rossi E, Kaminski A, Fretwell HM, Rosenkranz S, Kadowaki K, Campuzano JC
Journal TitlePhysical Review B
Volume75
Pages172504
Date PublishedMay
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberISI:000246890500021
Keywordsenergy, MAGNETIC EXCITATIONS, neutron-scattering, spectroscopy, t-c
Abstract

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.

DOI10.1103/PhysRevB.75.172504
Alternate JournalPhys. Rev. B