Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates

Physics – Condensed Matter – Superconductivity

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

59 pages, 38 figures, review article

Scientific paper

In Part I we discuss accumulating experimental evidence related to the structure and origin of the bosonic spectral function in high-temperature superconducting (HTSC) cuprates at and near optimal doping. Some global properties of the spectral function, such as number and positions of peaks, are extracted by combining optics, neutron scattering, ARPES and tunnelling measurements. These methods give convincing evidence for strong electron-phonon interaction (EPI) with the coupling constant between 1-3 in cuprates near optimal doping. Here we clarify how these results are in favor of the Eliashberg-like theory for HTSC cuprates near optimal doping. In Part II we discuss some theoretical ingredients - such as strong EPI, strong correlations - which are necessary to explain the experimental results related to the mechanism of d-wave pairing in optimally doped cuprates. These comprise the Migdal-Eliashberg theory for EPI in strongly correlated systems which give rise to the forward scattering peak. The latter is further supported by the weakly screened Madelung interaction in the ionic-metallic structure of layered cuprates. In this approach EPI is responsible for the strength of pairing while the residual Coulomb interaction (by including spin fluctuations) triggers the d-wave pairing.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-238812

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.