Magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2.
The magnetic and crystal structures of the alpha-NaMnO2 have been determined by high-resolution neutron powder diffraction. The system maps out a frustrated triangular spin lattice with anisotropic interactions that displays two-dimensional spin correlations below 200 K. Magnetic frustration is lift...
| Những tác giả chính: | , , , , , |
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| Định dạng: | Journal article |
| Ngôn ngữ: | English |
| Được phát hành: |
2007
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| _version_ | 1826281658134822912 |
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| author | Giot, M Chapon, L Androulakis, J Green, M Radaelli, P Lappas, A |
| author_facet | Giot, M Chapon, L Androulakis, J Green, M Radaelli, P Lappas, A |
| author_sort | Giot, M |
| collection | OXFORD |
| description | The magnetic and crystal structures of the alpha-NaMnO2 have been determined by high-resolution neutron powder diffraction. The system maps out a frustrated triangular spin lattice with anisotropic interactions that displays two-dimensional spin correlations below 200 K. Magnetic frustration is lifted through magneto-elastic coupling, evidenced by strong anisotropic broadening of the diffraction profiles at high temperature and ultimately by a structural phase transition at 45 K. In this low-temperature regime a three-dimensional antiferromagnetic state is observed with a propagation vector k=(1/2,1/2,0). |
| first_indexed | 2024-03-07T00:32:06Z |
| format | Journal article |
| id | oxford-uuid:8029f86c-02e6-4f84-ab03-3feb876f8da5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:32:06Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:8029f86c-02e6-4f84-ab03-3feb876f8da52022-03-26T21:21:31ZMagnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8029f86c-02e6-4f84-ab03-3feb876f8da5EnglishSymplectic Elements at Oxford2007Giot, MChapon, LAndroulakis, JGreen, MRadaelli, PLappas, AThe magnetic and crystal structures of the alpha-NaMnO2 have been determined by high-resolution neutron powder diffraction. The system maps out a frustrated triangular spin lattice with anisotropic interactions that displays two-dimensional spin correlations below 200 K. Magnetic frustration is lifted through magneto-elastic coupling, evidenced by strong anisotropic broadening of the diffraction profiles at high temperature and ultimately by a structural phase transition at 45 K. In this low-temperature regime a three-dimensional antiferromagnetic state is observed with a propagation vector k=(1/2,1/2,0). |
| spellingShingle | Giot, M Chapon, L Androulakis, J Green, M Radaelli, P Lappas, A Magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2. |
| title | Magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2. |
| title_full | Magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2. |
| title_fullStr | Magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2. |
| title_full_unstemmed | Magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2. |
| title_short | Magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha-NaMnO2. |
| title_sort | magnetoelastic coupling and symmetry breaking in the frustrated antiferromagnet alpha namno2 |
| work_keys_str_mv | AT giotm magnetoelasticcouplingandsymmetrybreakinginthefrustratedantiferromagnetalphanamno2 AT chaponl magnetoelasticcouplingandsymmetrybreakinginthefrustratedantiferromagnetalphanamno2 AT androulakisj magnetoelasticcouplingandsymmetrybreakinginthefrustratedantiferromagnetalphanamno2 AT greenm magnetoelasticcouplingandsymmetrybreakinginthefrustratedantiferromagnetalphanamno2 AT radaellip magnetoelasticcouplingandsymmetrybreakinginthefrustratedantiferromagnetalphanamno2 AT lappasa magnetoelasticcouplingandsymmetrybreakinginthefrustratedantiferromagnetalphanamno2 |