Physics – Condensed Matter – Superconductivity
Scientific paper
2006-06-08
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1088/1742-6596/92/1/012007
Twenty years of extensive research has yet to produce a general consensus on the origin of high temperature superconductivity (HTS). However, several generic characteristics of the cuprate superconductors have emerged as the essential ingredients of and/or constraints on any viable microscopic model of HTS. Besides a Tc of order 100K, the most prominent on the list include a d-wave superconducting gap with Fermi liquid nodal excitations, a d-wave pseudogap with the characteristic temperature scale T*, an anomalous doping-dependent oxygen isotope shift, nanometer-scale gap inhomogeneity, etc.. The key role of planar oxygen vibrations implied by the isotope shift and other evidence, in the context of CuO2 plane symmetry and charge constraints from the strong intra-3d Coulomb repulsion U, enforces an anharmonic mechanism in which the oxygen vibrational amplitude modulates the strength of the in-plane Cu-Cu bond. We show, within a Fermi liquid framework, that this mechanism can lead to strong d-wave pairing and to a natural explanation of the salient features of HTS.
Newns Dennis M.
Tsuei Chang C.
No associations
LandOfFree
Fluctuating Cu-O-Cu Bond model of high temperature superconductivity in 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 Fluctuating Cu-O-Cu Bond model of high temperature superconductivity in cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluctuating Cu-O-Cu Bond model of high temperature superconductivity in cuprates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-409458