Incommensurate magnetic ground state revealed by RXS in the frustrated spin system Ca3Co2O6

Abstract

We have performed a resonant x-ray scattering study at the Co pre-K edge on a single crystal of Ca3Co2O6. The measurements reveal an abrupt transition to a magnetically ordered state immediately below T_N = 25 K, with a magnetic correlation length in excess of 5500 Å along the c-axis chains. There is no evidence for modifications to the Co${}^{3+}$ spin state. A temperature dependent modulation in the magnetic order along the c-axis and an unusual decrease in the magnetic correlation lengths on cooling are observed. The results are compatible with the onset of a partially disordered antiferromagnetic structure in Ca3Co2O6.

arXiv commentRevTex 4, 5 pages + 3 figures

References in corpus (6)

• Valence, spin, and orbital state of the Co ions in the one-dimensional Ca3Co2O6: an x-ray absorption and magnetic circular dichroism study
• Nature of magnetism in Ca${}_3$Co${}_2$O${}_6$
• Step-like magnetization in a spin-chain system: Ca3Co2O6
• Specific heat and magnetization study on single crystals of a frustrated, quasi one-dimensional oxide: Ca3Co2O6
• Magnetic behavior of Co ions in the exotic spin-chain compound,Ca3Co2O6, from 59Co NMR studies
• Magnetic structure and phase diagram in a spin-chain system: Ca${}_3$Co${}_2$O${}_6$

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