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Commensurate phase of multiferroic HoMn2O5 studied by x-ray magnetic scattering

DOI: 10.1103/PhysRevB.77.172408 DOI Help

Authors: C. Vecchini (National Physical Laboratory) , S. Park (Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University) , S.-w. Cheong (Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University) , G. Beutier (Diamond Light Source) , A. Bombardi (Diamond Light Source) , L. C. Chapon (ISIS) , P. G. Radaelli (ISIS, Rutherford Appleton Laboratory)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 77 (17)

State: Published (Approved)
Published: June 2008

Abstract: The commensurate phase of multiferroic HoMn 2 O 5 was studied by x-ray magnetic scattering, both off-resonance and in resonant conditions at the Ho?L 3 edge. Below 40 K, magnetic ordering at the Ho sites is induced by the main Mn magnetic order parameter, and its temperature dependence is well accounted for by a simple Curieā€“Weiss susceptibility model. A lattice distortion of periodicity twice that of the magnetic order is also evidenced. The azimuthal scans confirm the model of the magnetic structure recently refined from neutron diffraction data for both Mn and Ho sites, indicating that the two sublattices interact via magnetic superexchange.

Journal Keywords: Multiferroic X-Ray Magnetic Scattering

Subject Areas: Chemistry


Instruments: I16-Materials and Magnetism

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