Magnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scattering
The magnetic structure of multiferroic GdMn2O5 is studied by x-ray magnetic scattering, both off resonance and in resonant conditions at the Gd LIII edge. Temperature dependence of magnetic Bragg reflections shows an initial incommensurate (ICM) ordering appearing at T∼40K with magnetic propagation...
| Main Authors: | , , , , , |
|---|---|
| Format: | Conference item |
| Published: |
Institute of Physics Publishing
2014
|
| _version_ | 1826266005022703616 |
|---|---|
| author | Vecchini, C Bombardi, A Chapon, L Lee, N Radaelli, P Cheong, S |
| author_facet | Vecchini, C Bombardi, A Chapon, L Lee, N Radaelli, P Cheong, S |
| author_sort | Vecchini, C |
| collection | OXFORD |
| description | The magnetic structure of multiferroic GdMn2O5 is studied by x-ray magnetic scattering, both off resonance and in resonant conditions at the Gd LIII edge. Temperature dependence of magnetic Bragg reflections shows an initial incommensurate (ICM) ordering appearing at T∼40K with magnetic propagation vector kICM ∼(0.49 0 0.18) which condenses at T∼33K in a commensurate (CM) wave vector kCM=(1/2 0 0). In the CM phase Gd3+ ions appear to order spontaneously at the same temperature as Mn ions. Azimuthal scans allowed for the precise determination, from x-ray magnetic scattering only, of the orientation and magnitude of the Gd3+ magnetic moments. The Gd 3+ magnetic isotropy allows for the Gd ions to mimic the Mn 4+ magnetic sublattice via Gd-Mn-Gd superexchange interactions. © Published under licence by IOP Publishing Ltd. |
| first_indexed | 2024-03-06T20:32:25Z |
| format | Conference item |
| id | oxford-uuid:317eb902-2ce7-4153-80ac-5dccf6456877 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:32:25Z |
| publishDate | 2014 |
| publisher | Institute of Physics Publishing |
| record_format | dspace |
| spelling | oxford-uuid:317eb902-2ce7-4153-80ac-5dccf64568772022-03-26T13:08:21ZMagnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scatteringConference itemhttp://purl.org/coar/resource_type/c_5794uuid:317eb902-2ce7-4153-80ac-5dccf6456877Symplectic Elements at OxfordInstitute of Physics Publishing2014Vecchini, CBombardi, AChapon, LLee, NRadaelli, PCheong, SThe magnetic structure of multiferroic GdMn2O5 is studied by x-ray magnetic scattering, both off resonance and in resonant conditions at the Gd LIII edge. Temperature dependence of magnetic Bragg reflections shows an initial incommensurate (ICM) ordering appearing at T∼40K with magnetic propagation vector kICM ∼(0.49 0 0.18) which condenses at T∼33K in a commensurate (CM) wave vector kCM=(1/2 0 0). In the CM phase Gd3+ ions appear to order spontaneously at the same temperature as Mn ions. Azimuthal scans allowed for the precise determination, from x-ray magnetic scattering only, of the orientation and magnitude of the Gd3+ magnetic moments. The Gd 3+ magnetic isotropy allows for the Gd ions to mimic the Mn 4+ magnetic sublattice via Gd-Mn-Gd superexchange interactions. © Published under licence by IOP Publishing Ltd. |
| spellingShingle | Vecchini, C Bombardi, A Chapon, L Lee, N Radaelli, P Cheong, S Magnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scattering |
| title | Magnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scattering |
| title_full | Magnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scattering |
| title_fullStr | Magnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scattering |
| title_full_unstemmed | Magnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scattering |
| title_short | Magnetic phase diagram and ordered ground state of GdMn2O 5 multiferroic studied by x-ray magnetic scattering |
| title_sort | magnetic phase diagram and ordered ground state of gdmn2o 5 multiferroic studied by x ray magnetic scattering |
| work_keys_str_mv | AT vecchinic magneticphasediagramandorderedgroundstateofgdmn2o5multiferroicstudiedbyxraymagneticscattering AT bombardia magneticphasediagramandorderedgroundstateofgdmn2o5multiferroicstudiedbyxraymagneticscattering AT chaponl magneticphasediagramandorderedgroundstateofgdmn2o5multiferroicstudiedbyxraymagneticscattering AT leen magneticphasediagramandorderedgroundstateofgdmn2o5multiferroicstudiedbyxraymagneticscattering AT radaellip magneticphasediagramandorderedgroundstateofgdmn2o5multiferroicstudiedbyxraymagneticscattering AT cheongs magneticphasediagramandorderedgroundstateofgdmn2o5multiferroicstudiedbyxraymagneticscattering |