Charged domain-wall dynamics in doped antiferromagnets and spin fluctuations in cuprate superconductors

J. Zaanen, M. L. Horbach, and W. van Saarloos
Phys. Rev. B 53, 8671 – Published 1 April 1996
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Abstract

Evidence is accumulating that the electron liquid in the cuprate superconductors is characterized by many-hole correlations of the charged magnetic domain-wall type. Here we focus on the strong-coupling limit where all holes are bound to domain walls. We assert that at high temperatures a classical domain-wall fluid is realized and show that the dynamics of such a fluid is characterized by spatial and temporal crossover scales set by temperature itself. The fundamental parameters of this fluid are such that the domain-wall motions dominate the low-frequency spin fluctuations and we derive predictions for the behavior of the dynamical magnetic susceptibility. We argue that a crossover occurs from a high-temperature classical to a low-temperature quantum regime, in direct analogy with helium. We discuss some general characteristics of the domain-wall quantum liquid, realized at low temperatures. © 1996 The American Physical Society.

  • Received 15 August 1995

DOI:https://doi.org/10.1103/PhysRevB.53.8671

©1996 American Physical Society

Authors & Affiliations

J. Zaanen, M. L. Horbach, and W. van Saarloos

  • Institute Lorentz for Theoretical Physics, Leiden University, P.O. Box 9506, NL-2300 RA Leiden, The Netherlands

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Issue

Vol. 53, Iss. 13 — 1 April 1996

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