Abstract
We present the theory of the leading edge gap in the normal state of underdoped high-Tc materials. The consideration is based on a magnetic scenario for cuprates. We show that as doping decreases, the increasing interaction with paramagnons gives rise to a near destruction of the quasiparticle peak near (0, π) and symmetry related points. We then solve the d-wave pairing problem and show that the actual Tc decreases with the strength of the coherent quasiparticle peak, but the precursors to d-wave state exist above Tc even for fully incoherent quasiparticles.
Original language | English (US) |
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Pages (from-to) | 2990-2994 |
Number of pages | 5 |
Journal | International Journal of Modern Physics B |
Volume | 12 |
Issue number | 29-31 |
DOIs | |
State | Published - Dec 20 1998 |