The formation of resonating-valence-bond droplets in La2CuO4-based compounds
- 20 March 1988
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 21 (8), L225-L229
- https://doi.org/10.1088/0022-3719/21/8/005
Abstract
The authors show that a hole added in a Mott-Hubbard magnetic insulator may form a resonating-valence-bond (RVB) spin-liquid droplet. For moderate values of the Hubbard parameter U/t, a single-hole RVB droplet has much lower energy than a spin polaron. Indeed, it is likely the droplet contains several holes. They find that 2 to 3% of holes can destroy the underlying antiferromagnetic long-range order. They also discuss the relevance to the La2CuO4-based high-temperature superconductors.Keywords
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