Weak Pseudogap Behavior in the Underdoped Cuprate Superconductors

Journal Article · Wed Apr 01 04:00:00 EST 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.3839· OSTI ID:601043

Schmalian, J; Pines, D ^[1]; Pines, D; Stojkovic, B ^[2]

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1. University of Illinois at Urbana-Champaign, Loomis Laboratory of Physics, 1110 W. Green, Urbana, Illinois 61801 (United States)
2. Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We report on a novel solution of the nearly antiferromagnetic (AF) spin fermion model in the limit {pi}T{gt}{omega}{sub sf} , which demonstrates that the broad high energy features found in angular resolved photoemission spectroscopy measurements of the spectral density of the underdoped cuprates are determined by strong (AF) correlations and precursor effects of a spin density wave state. We show that the onset temperature, T{sup cr} , of weak pseudogap behavior is determined by the strength, {xi} , of the (AF) correlations, and obtain the generic changes in low frequency magnetic behavior seen in NMR experiments with {xi}(T{sup cr}){approx}2 , confirming the Barzykin and Pines crossover criterion. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 601043
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 17 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIFERROMAGNETISM
CORRELATIONS
CUPRATES
DOPED MATERIALS
ENERGY GAP
HIGH-TC SUPERCONDUCTORS
PHOTOEMISSION
SPECTRAL DENSITY