Incommensurate Magnetic Structures in Triangular Antiferromagnet CsCuCl₃

Abstract

Abstract The helical magnet CsCuCl 3 in an applied field higher than the critical field is shown to have sinusoidal phase with linear polarization of spins. The new intermediate phase is due to a conical‐point instability caused by weak dipole interactions. Therefore in different temperature ranges two modulated structures are actually realized. Results found theoretically are in good agreement with the experimental data.