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Publication Detail
Electric field control of multiferroic domains in Ni3V2O8 imaged by x-ray polarization-enhanced topography
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Fabrizi F, Walker HC, Paolasini L, de Bergevin F, Fennell T, Rogado N, Cava RJ, Wolf T, Kenzelmann M, McMorrow DF
  • Publisher:
    AMER PHYSICAL SOC
  • Publication date:
    30/07/2010
  • Journal:
    PHYS REV B
  • Volume:
    82
  • Issue:
    2
  • Article number:
    024434
  • Print ISSN:
    1098-0121
  • Language:
    EN
  • Keywords:
    FERROELECTRIC DOMAINS, HOLOGRAPHY, SCATTERING, LINBO3
  • Addresses:
    Fabrizi, F
    European Synchrotron Radiat Facil
    F-38043
    Grenoble
    France

    Inst Max Von Laue Paul Langevin
    F-38042
    Grenoble
    France

    Princeton Univ
    Princeton Mat Inst
    Princeton
    NJ
    08544
    USA
Abstract
The magnetic structure of multiferroic Ni3V2O8 has been investigated using nonresonant x-ray magnetic scattering. Incident circularly polarized x rays combined with full polarization analysis of the scattered beam is shown to yield high sensitivity to the components of the cycloidal magnetic order, including their relative phases. Information on the magnetic structure in the ferroelectric phase is obtained, where it is found that the magnetic moments on the "cross-tie" sites remain disordered. This implies that the onset of ferroelectricity is associated mainly with spine site magnetic order. We also demonstrate that our technique enables the imaging of multiferroic domains through polarization enhanced topography. This approach is used to image the domains as the sample is cycled by an electric field through its hysteresis loop, revealing the gradual switching of domains without nucleation.
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