Temperature dependence of the magnetic excitations in (=33 K)
- 17 July 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 63 (3), 330-333
- https://doi.org/10.1103/physrevlett.63.330
Abstract
Using neutron-scattering techniques, we have studied the temperature dependence of the magnetic excitations at varied energies in a high-quality single crystal of . This crystal exhibits a sharp superconducting transition at 33 K with nearly 100% flux exclusion. For magnetic excitation energies of 9 meV and lower, the intensity drops dramatically with decreasing temperature for temperatures below ∼150 K. However, at 12 MeV the intensity is independent of temperature between 300 and 5 K.
Keywords
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