On the vibroelectronic Raman effect

Abstract

The theory of a new Raman effect is presented where changes occur in the electronic and vibrational quantum numbers. Theory predicts that such an effect is governed by trace scattering and to first order only totally symmetric vibrations are involved. The experimental data are in good agreement with the theoretical predictions.

On the value of the depolarization ratio of fundamentals of sandwich compounds with an electronically degenerate ground state

“…(2) The product of representations given in [2] rzfers to the symm9ric and anti-symmetric product and the latter ha-, to be con;idered becau3e we have electronically degenerate states. In an earlier paper [12] it was demonstrated that the tensor of the latter type of transitions is asymmetric, while the tensor of the vibrational transitions is symmetric in the non-resonance case. : componmts of these products can be either symmetric (A,,+E,,) or anti-symmetric ( A z g ) .…”

“…The tensors belonging to th. [12] If the vibro-electronic Raman effect could contribute to the intensity of the transitions shown in Figure 1, then the tensor is that of species B of C, . At present, however it is not clear to what degree the latter tensors contribute to the intensity of the a,, fundamental in El,.…”

Electronic Raman Spectroscopy and Magnetic Susceptibilities

“…Using the dysprosium garnet parameters for In addition, the vibro-electronic Raman effect the initial fit, the splitting patterns for 3~, is only allowed if the symmetries of the electronic of Tm3+ in TlnGaG and TmAlG were calstates are the same (21). Another advantage of culated.…”