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Raman scattering from phonons and magnons in antiferromagnetic Fe3BO6

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
50
Issue
4
Identifiers
DOI: 10.1016/0038-1098(84)90379-x

Abstract

Abstract Raman scattering by phonons and by magnon pairs has been observed in Fe 3BO 6. Of the predicted 60 Raman-active modes, 39 have been identified and classified according to their symmetries. The two-magnon band shows a strong decrease in intensity with increasing temperature, and almost vanishes close to T N = 508 K. The origin of this effect is attributed to the existence of a nearly dispersionless magnon branch.

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