TY - JOUR
T1 - dx2-y2-wave pairing fluctuations and spin pseudogap in high-Tc cuprates
AU - Onoda, Shigeki
AU - Imada, Masatoshi
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2000
Y1 - 2000
N2 - Pseudogap phenomena in high-Tc. cuprates are examined. The effective action for 2D electron systems with antiferromagnetic (AFM) and dx2-y2-wave superconducting (dSC) fluctuations is considered. By the SCR (self-consistent renormalization), the spin and the pairing correlation lengths, ξσand ξd, and 1/T1 T are calculated. The pseudogap (PG) emerges when dSC short-range order (SRO) dominates over AFM-SRO. When damping for the spin wave strongly depends on ξd through the formation of precursor singlets around (π, 0) and (0, π) points, the spin PG in underdoped cuprates is reproduced. Otherwise, the PG region shrinks as in overdoped cuprates.
AB - Pseudogap phenomena in high-Tc. cuprates are examined. The effective action for 2D electron systems with antiferromagnetic (AFM) and dx2-y2-wave superconducting (dSC) fluctuations is considered. By the SCR (self-consistent renormalization), the spin and the pairing correlation lengths, ξσand ξd, and 1/T1 T are calculated. The pseudogap (PG) emerges when dSC short-range order (SRO) dominates over AFM-SRO. When damping for the spin wave strongly depends on ξd through the formation of precursor singlets around (π, 0) and (0, π) points, the spin PG in underdoped cuprates is reproduced. Otherwise, the PG region shrinks as in overdoped cuprates.
KW - Pairing fluctuations
KW - Pseudogap
KW - Spin fluctuations
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U2 - 10.1016/S0921-4526(99)02346-7
DO - 10.1016/S0921-4526(99)02346-7
M3 - Article
AN - SCOPUS:0033686521
SN - 0921-4526
VL - 284-288
SP - 671
EP - 672
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - PART I
ER -