Electrical & Computer Engineering, Department of

 

Date of this Version

May 1976

Comments

Published in Physical Review Letters Volume 36, Number 18, 3 May 1976. Copyright © 1976 by the American Physical Society. Used by permission.

Abstract

We have not been able lo reproduce the recently reported resonance enhancement of Raman scattering from magnons in MnF2 by Amer, Chiang, and Shen. Fifteen crystals ranging from extremely pure samples to ones with high concentrations of impurities, in addition to one supplied by Amer, Chiang, and Shen, were investigated. By observing the off-resonance scattering, we conclude that if an enhancement of greater than a factor of 2 were present, it would have been seen in our resonance spectra.

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