Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5.
We have studied the magnetostructural phase diagram of multiferroic TbMn2O5 as a function of temperature and magnetic field by neutron diffraction. Dielectric and magnetic anomalies are found to be associated with steps in the magnetic propagation vector, including a rare example of a commensurate-i...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1797097196274843648 |
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| author | Chapon, L Blake, G Gutmann, M Park, S Hur, N Radaelli, P Cheong, S |
| author_facet | Chapon, L Blake, G Gutmann, M Park, S Hur, N Radaelli, P Cheong, S |
| author_sort | Chapon, L |
| collection | OXFORD |
| description | We have studied the magnetostructural phase diagram of multiferroic TbMn2O5 as a function of temperature and magnetic field by neutron diffraction. Dielectric and magnetic anomalies are found to be associated with steps in the magnetic propagation vector, including a rare example of a commensurate-incommensurate transition on cooling below 24 K, and in the structural parameters. The geometrically frustrated magnetic structure is stabilized by "canted antiferroelectric" displacements of the Mn3+ ions, an example of the magnetic Jahn-Teller effect. The Tb moments order ferromagnetically at low temperatures in an applied field, while the Mn magnetic structure is largely unchanged. |
| first_indexed | 2024-03-07T04:52:06Z |
| format | Journal article |
| id | oxford-uuid:d554b616-4be6-4d1d-8142-5cb7f639828d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:52:06Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:d554b616-4be6-4d1d-8142-5cb7f639828d2022-03-27T08:25:04ZStructural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d554b616-4be6-4d1d-8142-5cb7f639828dEnglishSymplectic Elements at Oxford2004Chapon, LBlake, GGutmann, MPark, SHur, NRadaelli, PCheong, SWe have studied the magnetostructural phase diagram of multiferroic TbMn2O5 as a function of temperature and magnetic field by neutron diffraction. Dielectric and magnetic anomalies are found to be associated with steps in the magnetic propagation vector, including a rare example of a commensurate-incommensurate transition on cooling below 24 K, and in the structural parameters. The geometrically frustrated magnetic structure is stabilized by "canted antiferroelectric" displacements of the Mn3+ ions, an example of the magnetic Jahn-Teller effect. The Tb moments order ferromagnetically at low temperatures in an applied field, while the Mn magnetic structure is largely unchanged. |
| spellingShingle | Chapon, L Blake, G Gutmann, M Park, S Hur, N Radaelli, P Cheong, S Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5. |
| title | Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5. |
| title_full | Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5. |
| title_fullStr | Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5. |
| title_full_unstemmed | Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5. |
| title_short | Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5. |
| title_sort | structural anomalies and multiferroic behavior in magnetically frustrated tbmn2o5 |
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