Temperature variation of the pseudogap in underdoped cuprates

Andrey V. Chubukov, Jörg Schmalian

Research output: Contribution to journalArticle

69 Scopus citations

Abstract

We consider thermal evolution of the spectral function (Formula presented) in underdoped cuprates at (Formula presented) We find that in the strong-coupling limit, the fermionic Green’s function near (Formula presented) behaves as (Formula presented) in the whole frequency range relevant to photoemission experiments. The analysis of the pairing problem with this form of (Formula presented) yields a leading edge gap in (Formula presented) and a broad maximum at larger frequencies. We find that classical fluctuations predominantly add a frequency independent term to (Formula presented). This term destroys the leading edge gap at (Formula presented) which has a maximum value of about 200 K near (Formula presented).

Original languageEnglish (US)
Pages (from-to)R11085-R11088
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number18
DOIs
StatePublished - 1998
Externally publishedYes

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