Two-dimensional antiferromagnetic quantum spin-fluid state in
- 5 October 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 59 (14), 1613-1616
- https://doi.org/10.1103/physrevlett.59.1613
Abstract
Elastic, quasielastic, and inelastic neutron scattering measurements in reveal novel two-dimensional antiferromagnetic behavior. At high temperatures the spins are ordered instantaneously over long distances two dimensionally but there is no measurable time-averaged staggered moment. The energy scale of the spin fluctuations is large, corresponding to an effective dispersion of ≳0.4 eV Å. The relevance to the high-temperature superconductivity in this class of materials is noted.
Keywords
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