Monte Carlo simulation on ferroelectric response to magnetic field in an elastic lsing spin chain

Abstract

The fantastic ferroelectric response to the magnetic field observed in Ca₃CoMnO₆ compound, where the ferroelectricity is driven by the collinear magnetism, is investigated by using Monte Carlo simulation based on a one-dimensional elastic Ising model. The microscopic domain structures of spins and ionic displacements are evaluated at different temperatures under different external magnetic fields. It is revealed that the up-up-down-down (↑↑ ↓↓) spin domains clamped with the domains of ionic displacement are responsible for the exotic ferroelectric behavior upon different magnetic fields in the low temperature range.