Th. Sesselmann, W. Richter, et al.
Physical Review B
We propose a new phonon relaxation mechanism, in which the phonon couples to two electronic excitations, nearly resonant in energy. As a striking illustration of this effect we explain the anomalous temperature dependence of the linewidth of the k→, Eg phonon in CoF2 by its coupling to physically renormalized exciton-magnon states which detune with increasing temperature. © 1971 The American Physical Society.
Th. Sesselmann, W. Richter, et al.
Physical Review B
H. Morawitz, P. Reineker
Solid State Communications
F. Tong, R.M. MacFarlane, et al.
QELS 1989
H. Morawitz
IEEE JQE