Friday, January 25, 2013

1301.5788 (Tapan Chatterji et al.)

Phonon-Magnon coupling in CoF$_2$ investigated by time-of-flight neutron
spectroscopy
   [PDF]

Tapan Chatterji, Mohamed Zbiri, Stephane Rols
We report the results of inelastic neutron scattering investigation on the model antiferromagnet CoF$_2$ by time-of-flight neutron spectroscopy. We measured the details of the scattering function $S(Q,\omega)$ as a function of temperature with two different incident neutron wavelengths. The temperature and Q dependence of the measured scattering function suggests the presence of magnon-phonon coupling in almost all branches. The present results are in agreement with the strong magnetoelastic effects observed previously.
View original: http://arxiv.org/abs/1301.5788

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