Interaction between Magnons and Magnetic Excitons in Tb
- 31 December 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 31 (27) , 1585-1587
- https://doi.org/10.1103/physrevlett.31.1585
Abstract
Inelastic neutron-scattering measurements of acoustic magnons are reported for ferromagnetic Tb between 4.2 and 80 K for wave-vector transfers of 0.00 and 0.10 . Above 35 K we observe a double-peak structure in the scattered neutron intensity which is theoretically interpreted in terms of an interaction between the magnon and a magnetic exciton excited from an almost unpopulated state. This is the first observation of an interaction of this kind.
Keywords
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