Abstract
Magnetic correlations in Ti-substituted have been studied by elastic and inelastic neutron-scattering techniques. Below transition temperatures of the order of 20 K, the samples with 7.5 and 10% of Ti content exhibit an incommensurate spin-density wave ordering with a propagation vector , which does not reflect the dominant magnetic instabilities in pure . Strong inelastic correlations near were found to persist in far above the magnetic ordering; they become gapped in the ordered state.
- Received 17 July 2008
DOI:https://doi.org/10.1103/PhysRevB.79.054422
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