Ferroelectrical spin wave resonance

TL;DR

This paper reports the discovery of ferroelectrical spin wave resonance (FE SWR), a new phenomenon characterized by spectral splitting in optical spectra of localized centers, with distinct resonance modes and confirmed theoretical predictions.

Contribution

It introduces FE SWR as a novel phenomenon, demonstrating spectral splitting and mode behavior in optical spectra, with experimental confirmation of theoretical predictions.

Findings

Spectral splitting of vibration levels observed in optical spectra.

Resonance mode amplitudes inversely proportional to mode numbers.

Raman-ESWR and IR-ESWR have different splitting constants, ratio approximately two.

Abstract

New phenomenon is experimentally identified: ferroelectrical spin wave resonance (FE SWR), which consist in characteristic splitting of vibration (electronic-vibration) levels in optical spectra of interacting localized centers. Spectral positions of ESWR lines are determined in linear approach by quadratic dispersion law. It has been found that the values of resonance mode amplitudes are inversely proportional to mode numbers (by low excitation level). The prediction that Raman-ESWR and IR-ESWR are characterized by splitting constants with different values has been confirmed. Their ratio is approximately equal two (by the frequencies of zero modes reduced to the same value). It is independent argument for FE SWR identification.