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UNCONVENTIONAL LOW-ENERGY EXCITATIONS OF CUPRATE SUPERCONDUCTORS

2009/09/02 by N. -C. Yeh, N.-C. YEH, A. D. Beyer +1 · 11 citations
Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #Cooper pair #Cuprate #Phenomenology (philosophy) #Physics of Superconductivity and Magnetism #Pseudogap #Superconductivity #Superconductivity in MgB2 and Alloys #Vortex #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1142/s021797920905403x

published in International Journal of Modern Physics B 23(22), 4543-4577 (World Scientific) · Review article. 39 pages, 15 figures. (Fonts modified and abstract added)

arxiv created 2009/09/02 · openalex publication_date 2009/09/10 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Recent development in the physics of high-temperature cuprate superconductivity is reviewed, with special emphasis on the phenomena of unconventional and non-universal low-energy excitations of hole- and electron-type cuprate superconductors and the possible physical origin. A phenomenology based on coexisting competing orders with cuprate superconductivity in the ground state appears to provide a consistent account for a wide range of experimental findings, including the presence (absence) of pseudogaps and Fermi arcs above the superconducting transition T c in hole-type (electron-type) cuprate superconductors and the novel conductance modulations below T c , particularly in the vortex state. Moreover, the competing order scenario is compatible with the possibility of pre-formed Cooper pairs and significant phase fluctuations in cuprate superconductors. The physical implications of the unified phenomenology and remaining open issues for the microscopic mechanism of cuprate superconductivity are discussed.

Citations