Co-existing chiral and collinear phases in a distorted triangular antiferromagnet

Abstract

The entire magnetic phase diagram of the quasi two dimensional (2D) magnet on a distorted triangular lattice KFe(MoO4)2 is outlined by means of magnetization, specific heat, and neutron diffraction measurements. It is found that the spin network breaks down into two almost independent magnetic subsystems. One subsystem is a collinear antiferromagnet that shows a simple spin-flop behavior in applied fields. The other is a helimagnet that instead goes through a series of exotic commensurate-incommensurate phase transformations. In the various phases one observes either true 3D order or quasi-2D order. The experimental findings are compared to theoretical predictions found in literature

4 pages, 4 figures

References in corpus (5)

• Magnetic inversion symmetry breaking and ferroelectricity in TbMnO3
• Magnetically driven ferroelectric order in Ni${}_3$V${}_2$O${}_8$
• Direct transition from a disordered to a multiferroic phase on a triangular lattice
• Quasi two-dimensional antiferromagnet on a triangular lattice RbFe(MoO4)2
• Magnetic phase diagram, critical behaviour and 2D-3D crossover in a triangular lattice antiferromagnet RbFe(MoO4)2

Cited by in corpus (9)

• Interplay between organic cations and inorganic framework and incommensurability in hybrid lead-halide perovskite CH3NH3PbBr3
• Magnetic properties of monoclinic lanthanide orthoborates, $Ln$BO${}_3$, $Ln$ = Gd, Tb, Dy, Ho, Er, Yb
• Adiabatic demagnetization cooling well below the magnetic ordering temperature in the triangular antiferromagnet KBaGd(BO3)2
• Order by quenched disorder in the model triangular antiferromagnet RbFe(MoO4)2
• Competition between supersolid phases and magnetisation plateaux in the frustrated easy-axis antiferromagnet on a triangular lattice
• Helical magnetism and structural anomalies in triangular lattice α-SrCr2O4
• Two-dimensional short-range spin-spin correlations in the layered spin-3/2 maple leaf lattice antiferromagnet Na2Mn3O7 with crystal stacking disorder
• Structure and magnetism of a new hexagonal polymorph of Ba${}_3$Tb(BO${}_3$)${}_3$ with a quasi-2D triangular lattice
• Splitting of antiferromagnetic resonance modes in the quasi-two-dimensional collinear antiferromagnet Cu(en)(H${}_2$O)${}_2$SO${}_4$