Special photon energies for extracting the bosonic spectral function mediating superconductivity in Bi2Sr2CaCu 2O8 via angle-resolved photoemission spectroscopy

Physical Review B - Condensed Matter and Materials Physics

Volumn 69, Issue 14, 2004, Pages

  Lindroos, M ^a,b   Markiewicz, R S ^a   Bansill, A ^a  

^a NORTHEASTERN UNIVERSITY   (United States)

^b TAMPERE UNIVERSITY OF TECHNOLOGY   (Finland)

Author keywords

[No Author keywords available]

Indexed keywords

BISMUTH; CALCIUM; COPPER; STRONTIUM;

ANGLE RESOLVED PHOTOEMISSION SPECTROSCOPY; ARTICLE; BOSON; CONDUCTANCE; CRYSTAL; ELECTRON; ENERGY; PHOTON; SPECTROSCOPY;

EID: 2642511526     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.69.140505     Document Type: Article

References (19)

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15. The exact energy values depend weakly on the choice of final-state self-energy.
16. Figure 1 in principle, contains the variation of the ME as one goes around the FS, but this information is difficult to read in the plot. Figure 3 is better suited for this purpose since it considers ME normalized to unity at each photon energy, allowing one to focus on variations and to more easily identify the behavior near the antinodal and nodal points.
17. ∥ region of the first BZ, but should be adequate for most theoretical analyses.
18. bi, as we have carried out, provides a reasonable measure of the ω dependence of the ME.
19. The present analysis shows that the lineshape will be complicated by the intrinsic ω dependency of the ARPES matrix element. Therefore, caution should be exercised in addressing the delicate issue of ω dependency of the self-energy in Bi2212 via simple fits to the ARPES lineshapes using Lorentzians to model the bonding and antibonding components.