Anomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption study
Mn K-edge X-ray absorption near edge structure (XANES) measurements have been made to study the temperature-dependent lattice effects in the La0.75Ca0.25MnO3 system. The high-resolution XANES spectra recorded with high signal-to-noise ratio have allowed us to study the temperature dependence of the...
| Main Authors: | , , , , , |
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| Format: | Conference item |
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1997
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| _version_ | 1797076497123508224 |
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| author | Brunelli, M Lanzara, A Saini, N Bianconi, A Valletta, A Radaelli, P |
| author_facet | Brunelli, M Lanzara, A Saini, N Bianconi, A Valletta, A Radaelli, P |
| author_sort | Brunelli, M |
| collection | OXFORD |
| description | Mn K-edge X-ray absorption near edge structure (XANES) measurements have been made to study the temperature-dependent lattice effects in the La0.75Ca0.25MnO3 system. The high-resolution XANES spectra recorded with high signal-to-noise ratio have allowed us to study the temperature dependence of the Jahn-Teller splitting indicated directly by the dipole forbidden pre-peaks corresponding to transition in Mn 3d states. The results show splitting of the eg state in its two orbitals (dx2-y2 and d3z2-r2). The energy splitting shows anomalous temperature dependence across the giant magnetoresistance transition temperature. © 1997 Plenum Publishing Corporation. |
| first_indexed | 2024-03-07T00:04:35Z |
| format | Conference item |
| id | oxford-uuid:771d5041-1de2-4007-81dc-c1969fa9e4fd |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:04:35Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:771d5041-1de2-4007-81dc-c1969fa9e4fd2022-03-26T20:21:22ZAnomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption studyConference itemhttp://purl.org/coar/resource_type/c_5794uuid:771d5041-1de2-4007-81dc-c1969fa9e4fdSymplectic Elements at Oxford1997Brunelli, MLanzara, ASaini, NBianconi, AValletta, ARadaelli, PMn K-edge X-ray absorption near edge structure (XANES) measurements have been made to study the temperature-dependent lattice effects in the La0.75Ca0.25MnO3 system. The high-resolution XANES spectra recorded with high signal-to-noise ratio have allowed us to study the temperature dependence of the Jahn-Teller splitting indicated directly by the dipole forbidden pre-peaks corresponding to transition in Mn 3d states. The results show splitting of the eg state in its two orbitals (dx2-y2 and d3z2-r2). The energy splitting shows anomalous temperature dependence across the giant magnetoresistance transition temperature. © 1997 Plenum Publishing Corporation. |
| spellingShingle | Brunelli, M Lanzara, A Saini, N Bianconi, A Valletta, A Radaelli, P Anomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption study |
| title | Anomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption study |
| title_full | Anomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption study |
| title_fullStr | Anomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption study |
| title_full_unstemmed | Anomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption study |
| title_short | Anomalous Jahn-Teller distortions in La0.75Ca0.25MnO3 system: An X-ray absorption study |
| title_sort | anomalous jahn teller distortions in la0 75ca0 25mno3 system an x ray absorption study |
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