Evolution of the Commensurate and Incommensurate Magnetic phases of the S{/I= {3/2} Kagome Staircase Co3V2O8 in a Applied Field

Published

December 8, 2011

Author(s)

Joel Helton, Georgii L. Bychkov, Sergei N. Barilo, Nyrissa Rogado, Robert J. Cava, Jeffrey W. Lynn

Abstract

Single crystal neutron diffraction studies have been performed on the S = {3/2} kagome staircase compound Co₃V₂O₈ with a magnetic field applied along the magnetization easy-axis (H || a). Previous zero field measurements [Y. Chen, et al., Phys. Rev. B 74, 014430 (2006)] reported a rich magnetic phase diagram, with a ferromagnetic ground state as well as incommensurate, transversely polarized spin density wave (SDW) phases (with a propagation vector of k = (0 δ 0)) interspersed with multiple commensurate lock-in transitions. The magnetic phase diagram with H || a adds further complexity. For small applied fields, υ₀H ≅ 0.05 T, the commensurate lock-in phases are destabilized in favor of the incommensurate SDW, while slightly larger applied fields restore the commensurate lock-in phase with δ= 1⁄2 and yield a new commensurate phase with δ = {2/5}. For all measurements in an applied field, higher-order scattering is observed that corresponds to the second-harmonic.

Citation

Journal of Physics: Condensed Matter

Volume

24

Pub Type

Journals

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Keywords

frustrated magnetism, competing interactions, incommensurate magnetic structures

Citation

, J. , , G. , , S. , Rogado, N. , , R. and Lynn, J. (2011), Evolution of the Commensurate and Incommensurate Magnetic phases of the S{/I= {3/2} Kagome Staircase Co₃V₂O₈ in a Applied Field, Journal of Physics: Condensed Matter, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=909245 (Accessed May 5, 2024)