Absorption of electromagnetic radiation in systems with orientational interactions

Abstract

Absorption of electromagnetic radiation in ordered ferroelectric and antiferro-electric systems in external electrical fields has been investigated by means of Monte Carlo method. The dependences of the areas of the hysteresis curves on the frequency of the field have been calculated. At the resonance frequency, there is a maximum of the area of the hysteresis curve; the position of this maximum depends weakly on the temperature and the constant of intra- and interchain inte-ractions, and its height increases with decreasing temperature and increasing the interaction energy between molecules.