Evolution of the pairing pseudogap in the spectral function with interplane anisotropy

Physical Review B - Condensed Matter and Materials Physics

Volumn 59, Issue 2, 1999, Pages 1474-1480

  Preosti, G ^a   Vilk, Y M ^b   Norman, M R ^a  

^a ARGONNE NATIONAL LABORATORY   (United States)

^b NONE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000276294     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.1474     Document Type: Article

References (25)

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21. The factor (Formula presented) determines the symmetry of the order parameter. For an s-wave superconductor (Formula presented) while for a d-wave superconductor (Formula presented)
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24. In obtaining this equation we have used a “soft” cutoff procedure, which ensures that (Formula presented) approaches (Formula presented) continuously at (Formula presented) in order to avoid the spurious singularities that a sharp cutoff would give rise to in the self-energy. For this particular calculation, we have replaced (Formula presented) with (Formula presented)with (Formula presented)
25. In this and other plots of the spectral function, a broadening factor (Formula presented) has been added to the imaginary part of the self-energy, in order to make the sharp peaks visible.