Magnetic field induced phases in anisotropic triangular antiferromagnets: application to $\mathrm{CuCr}{\mathrm{O}}_2$

Abstract

We introduce a minimal spin model for describing the magnetic properties of $\mathrm{CuCr}{\mathrm{O}}_2$. Our Monte Carlo simulations of this model reveal a rich magnetic field induced phase diagram, which explains the measured field dependence of the electric polarization. The sequence of phase transitions between different mutiferroic states arises from a subtle interplay between spatial and spin anisotropy, magnetic frustration and thermal fluctuations. Our calculations are compared to new measurements up to 92 T.

6.5 pages, 9 figures

References in corpus (1)

• Spin-driven ferroelectricity and possible antiferroelectricity in triangular lattice antiferromagnets ACrO2 (A = Cu, Ag, Li, or Na)

Cited by in corpus (4)

• Magnetic phases of quasi-two-dimensional antiferromagnet on triangular lattice CuCrO${}_2$
• Exact Critical Casimir Amplitude of Anisotropic Systems from Conformal Field Theory and Self-Similarity of Finite-Size Scaling Functions in $d\ge 2$ Dimensions
• Ultrahigh Magnetic Field Phases in Frustrated Triangular-lattice Magnet CuCrO${}_2$
• Spin glass state and enhanced spiral phase in doped delafossite oxide CuCrO2