Theory of the leading edge gap in underdoped cuprates

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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 languageEnglish (US)
Pages (from-to)2990-2994
Number of pages5
JournalInternational Journal of Modern Physics B
Volume12
Issue number29-31
DOIs
StatePublished - Dec 20 1998

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