Charge order, dynamics, and magnetostructural transition in multiferroic LuFe2O4
We investigated the series of temperature and field-driven transitions in LuFe2O4 by optical and Mössbauer spectroscopies, magnetization, and x-ray scattering in order to understand the interplay between charge, structure, and magnetism in this multiferroic material. We demonstrate that charge fluct...
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| Veröffentlicht in: | Physical review letters 2008-11, Vol.101 (22), p.227602-227602 |
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| container_issue | 22 |
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| container_title | Physical review letters |
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| creator | Xu, X S Angst, M Brinzari, T V Hermann, R P Musfeldt, J L Christianson, A D Mandrus, D Sales, B C McGill, S Kim, J-W Islam, Z |
| description | We investigated the series of temperature and field-driven transitions in LuFe2O4 by optical and Mössbauer spectroscopies, magnetization, and x-ray scattering in order to understand the interplay between charge, structure, and magnetism in this multiferroic material. We demonstrate that charge fluctuation has an onset well below the charge ordering transition, supporting the "order by fluctuation" mechanism for the development of charge order superstructure. Bragg splitting and large magneto-optical contrast suggest a low-temperature monoclinic distortion that can be driven by both temperature and magnetic field. |
| doi_str_mv | 10.1103/PhysRevLett.101.227602 |
| format | Article |
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| ispartof | Physical review letters, 2008-11, Vol.101 (22), p.227602-227602 |
| issn | 0031-9007 1079-7114 1079-7114 |
| language | eng |
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| source | American Physical Society Journals |
| subjects | CHARGE CARRIERS IRON OXIDES LUTETIUM OXIDES MAGNETIC FIELDS MAGNETIZATION MATERIALS SCIENCE PHASE TRANSFORMATIONS Physical, chemical, mathematical & earth Sciences Physics Physique Physique, chimie, mathématiques & sciences de la terre PRECURSOR TEMPERATURE DEPENDENCE |
| title | Charge order, dynamics, and magnetostructural transition in multiferroic LuFe2O4 |
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