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Title: Crossover from the 2D Heisenberg to the 1D quantum spin ladder regime in underdoped high T-c cuprates
Authors: Moshchalkov, Victor # ×
Issue Date: 1999
Publisher: ELSEVIER SCIENCE BV
Series Title: Physica. C, Superconductivity vol:318 pages:361-365
Conference: date:Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium
Abstract: The enigmatic scaling behaviour of the normal state properties of the high T-c cuprates has been explained by assuming that a crossover from the two-dimensional Heisenberg (2D-H) to the one-dimensional spin ladder (1D-SL) regime takes place at temperature T similar or equal to T*. For T< T*, stripe formation results in the quantum 1D transport with the characteristic inelastic length L-phi being fully controlled by the magnetic correlation length xi(m) of the even-chain SL, whereas for T> T*, the 2D quantum transport is realized with L-phi governed by the 2D-H correlations L-phi similar or equal to xi(m) similar to exp(J/T). Therefore, the pseudogap found in underdoped (p < p(opt)) high T-c's is the spin-gap Delta( p) in even-chain 1D-SL. (C) 1999 Elsevier Science B.V. All rights reserved.
ISSN: 0921-4534
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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