Novel results in STM, ARPES, HREELS, Nernst, neutron, Raman, and isotope substitution experiments and their relation to bosonic modes and charge inhomogeneity, from perspective of negative-Ueff boson-fermion modelling of HTSC

Abstract

This paper seeks to synthesize much recent work on the HTSC materials around the latest STM results from Davis and coworkers. The conductance diffuse scattering results in particular are used as point of entry to discuss bosonic modes, both of condensed and uncondensed form. The bosonic mode picture is essential to understanding an ever growing range of observations within the HTSC field. The work is expounded within the context of the negative-U, boson-fermion modelling long advocated by the author. This general approach is presently seeing much theoretical development, into which I have looked to couple many of the experimental advances. While the formal theory is not yet sufficiently detailed to cover adequately all the experimental complexities presented by the real cuprate systems, it is clear that it affords very appreciable support to the line taken. An attempt is made throughout to say why and how it is that these events are tied so very closely to this particular set of materials.

36 pages pdf with 3 figures and 1 table included, Submitted to J. Phys. Cond. Matt

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Cited by in corpus (10)

• Phenomenology of the normal state in-plane transport properties of high-$T_c$ cuprates
• Anisotropic Scattering and Anomalous Transport in a High Temperature Superconductor
• A perspective on pnictide superconductors
• Structural matters in HTSC; the origin and form of stripe organization and checker boarding
• Optical response of high-$T_c$ cuprates: possible role of scattering rate saturation and in-plane anisotropy
• Further evidence for linearly-dispersive Cooper pairs
• Evolution with hole doping of the electronic excitation spectrum in the cuprate superconductors
• A negative-U interpretation of the femto-second laser pulse induced crystallographic expansion of a cuprate HTSC material reported recently by Gedik et al
• Unconventional particle-hole mixing in the systems with strong superconducting fluctuations
• On properly integrating the electronic Raman and optical infra-red spectra of HTSC cuprate materials