I just add another wing to my research career. A small excerpt from that account is published in the following text. I should emphasize that this is once again quite technical, and hence a unsuitable attire for here but pertaining to science. You may find the preprint in cond-mat.
~ A competing order scenario of two-gap behavior in hole doped cuprates
~ A competing order scenario of two-gap behavior in hole doped cuprates
Angle- and temperature-dependent studies of the gap function provide evidence for the coexistence of two distinct gaps in hole doped cuprates, where the nodal gap scales with the superconducting (SC) transition temperature Tc, while the the antinodal gap follows with pseudogap. We present model calculations which show that most of the characteristic features observed in the recent angle-resolved photoemission (ARPES) as well as scanning tunneling microscopy (STM) two-gap studies are consistent with a scenario in which the pseudogap has a non-superconducting origin in a competing phase. The presence of a peak-dip-hump feature in the energy distribution curves in the SC state clearly reflects the two gap behavior, where the peak follows a simple d-wave form while the hump traces the pseudogap. Our analysis also indicates that, near optimal doping, strong superconductivity can quench the pseudogap at low-T and hence the gap crosses over from being of a pure d-wave form at low-T to one displaying a competing order character above Tc. We have further studied the some of the key differences between the STM and ARPES results within the same model. With increasing energy, the ARPES and STM follows the same d-wave gap symmetry up to the edge of the Fermi surface arc, but above that energy, the ARPES follows the pseudogap up to the edge of the Brillouin zone boundary where the STM-derived gaps remain within the AFM boundary up to the end of the FS arc and as a result it shoots up nearly vertically.
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