The nature of the magnetic order in Ca3Co2O6

Abstract

We present a detailed powder and single crystal neutron diffraction study of the spin chain compound Ca3Co2O6. Below 25 K, the system orders magnetically with a modulated partially disordered antiferromagnetic structure. We give a description of the magnetic interactions in the system which is consistent with this magnetic structure. Our study also reveals that the long-range magnetic order co-exists with a shorter range order with a correlation length scale of 180 A in the ab plane. Remarkably, on cooling, the volume of material exhibiting short range order increases at the expense of the long-range order.

4 pages, submitted to Physical Review Letters

References in corpus (3)

• Valence, spin, and orbital state of the Co ions in the one-dimensional Ca3Co2O6: an x-ray absorption and magnetic circular dichroism study
• Incommensurate magnetic ground state revealed by RXS in the frustrated spin system Ca3Co2O6
• Magnetic structure and phase diagram in a spin-chain system: Ca${}_3$Co${}_2$O${}_6$

Cited by in corpus (13)

• Slow Magnetic Order-Order Transition in the Spin Chain Antiferromagnet Ca3Co2O6
• Formation of Magnetic Microphases in Ca${}_3$Co${}_2$O${}_6$
• Structure and magnetic properties of the $S=3/2$ zigzag spin chain antiferromagnet BaCoTe${}_2$O${}_7$
• Magnetization plateau and incommensurate spin modulation in Ca3Co2O6
• Reaching the equilibrium state of frustrated triangular Ising magnet Ca3Co2O6
• Emergent 1/3 magnetization plateaus in pyroxene CoGeO${}_3$
• Anomalous helimagnetic domain shrinkage due to the weakening of Dzyaloshinskii-Moriya interaction in CrAs
• Low-energy effective theory and two distinct critical phases in a spin-1/2 frustrated three-leg spin tube
• Magnetic field-induced deformation of the spin-density wave microphases in Ca${}_3$Co${}_2$O${}_6$
• Peculiar magnetic dynamics across the in-field transition in Ca3Co2O6
• Three-dimensional ferrimagnetic ground state of triangular-lattice system Ca3Co2O6
• Magnetic ground state and excitations in mixed 3$d$-4$d$ quasi-1D spin-chain oxide Sr${}_3$NiRhO${}_6$
• Observation of Magnetic Devil's Staircase-Like Behavior in Quasiperiodic Qubit Lattices