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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2006     Display Documents

ID: 306233.0, MPI für Festkörperforschung / FKF Publikationen 2006
Unadulterated spectral function of low-energy quasiparticles in Bi2Sr2CaCu2O8+δ
Authors:Evtushinsky, D. V.; Kordyuk, A. A.; Borisenko, S. V.; Zabolotnyy, V. B.; Knupfer, M.; Fink, J.; Büchner, B.; Pan, A. V.; Erb, A.; Lin, C. T.; Berger, H.
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Physical Review B
Issue / Number:17
Sequence Number of Article:172509
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:Fitting the momentum distribution photoemission spectra to the Voigt
profile appears to be a robust procedure to purify the interaction
effects from the experimental resolution. In application to
Bi2Sr2CaCu2O8+delta high-T-c cuprates, the procedure reveals the true
scattering rate at low binding energies and temperatures, and
consequently, the true value of the elastic scattering. Reaching the
minimal value similar to 16 meV, the elastic scattering does not reveal
a systematic dependence on doping level, but is rather sensitive to
impurity concentration and can be explained by the forward scattering
on out-of-plane impurities. The inelastic scattering is found to form
well-defined quasiparticles with the scattering rate similar to
omega(2) and similar to omega(3), above and below T-c, respectively.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Natl Acad Sci Ukraine, Inst Met Phys, UA-03142 Kiev, Ukraine.
; IFW Dresden, D-01171 Dresden, Germany.
; Univ Wollongong, ISEM, Wollongong, NSW 2522, Australia.
; Bayer Akad Wissensch, Walther Meissner Inst Tieftemp Forsch, D-85748 Garching, Germany.
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
; Ecole Polytech Fed Lausanne, Inst Phys Mat Complexe, CH-1015 Lausanne, Switzerland.
Identifiers:ISI:000242409000037 [ID No:1]
ISSN:1098-0121 [ID No:2]
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