Inelastic Neutron Scattering from the Spin Ladder Compound
- 7 November 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (19), 2626-2629
- https://doi.org/10.1103/physrevlett.73.2626
Abstract
We present results from an inelastic neutron scattering experiment on the candidate Heisenberg spin ladder vanadyl pyrophosphate, . We find evidence for a spin-wave excitation gap of meV at a band minimum near . This is consistent with expectations for triplet spin waves in in the spin-ladder model and represents the first confirmation in nature of a Heisenberg antiferromagnetic spin ladder.
Keywords
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