A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system
A quantitative determination of the statistical distribution of the Mn-O instantaneous bond lengths in the La0.75Ca0.25MnO3 system by Mn K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy shows that the giant magneto-resistance (GMR) transition occurs at a crossover from a metallic...
| Main Authors: | , , , , , , |
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| Format: | Conference item |
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1998
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| _version_ | 1826266679693279232 |
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| author | Lanzara, A Saini, N Brunelli, M Natali, F Bianconi, A Radaelli, P Cheong, S |
| author_facet | Lanzara, A Saini, N Brunelli, M Natali, F Bianconi, A Radaelli, P Cheong, S |
| author_sort | Lanzara, A |
| collection | OXFORD |
| description | A quantitative determination of the statistical distribution of the Mn-O instantaneous bond lengths in the La0.75Ca0.25MnO3 system by Mn K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy shows that the giant magneto-resistance (GMR) transition occurs at a crossover from a metallic phase with large (or intermediate) polarons to an insulating phase where small polarons coexist with large (or intermediate) polarons. In the GMR region, the two Mn polaronic domains coexist and share half of the space. © 1998 Published by Elsevier Science Ltd. All rights reserved. |
| first_indexed | 2024-03-06T20:42:37Z |
| format | Conference item |
| id | oxford-uuid:34c380b7-4689-4c50-862c-5c256cca5276 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:42:37Z |
| publishDate | 1998 |
| record_format | dspace |
| spelling | oxford-uuid:34c380b7-4689-4c50-862c-5c256cca52762022-03-26T13:28:05ZA transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite systemConference itemhttp://purl.org/coar/resource_type/c_5794uuid:34c380b7-4689-4c50-862c-5c256cca5276Symplectic Elements at Oxford1998Lanzara, ASaini, NBrunelli, MNatali, FBianconi, ARadaelli, PCheong, SA quantitative determination of the statistical distribution of the Mn-O instantaneous bond lengths in the La0.75Ca0.25MnO3 system by Mn K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy shows that the giant magneto-resistance (GMR) transition occurs at a crossover from a metallic phase with large (or intermediate) polarons to an insulating phase where small polarons coexist with large (or intermediate) polarons. In the GMR region, the two Mn polaronic domains coexist and share half of the space. © 1998 Published by Elsevier Science Ltd. All rights reserved. |
| spellingShingle | Lanzara, A Saini, N Brunelli, M Natali, F Bianconi, A Radaelli, P Cheong, S A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system |
| title | A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system |
| title_full | A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system |
| title_fullStr | A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system |
| title_full_unstemmed | A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system |
| title_short | A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system |
| title_sort | transition from large to small polarons in the la0 75ca0 25mno3 perovskite system |
| work_keys_str_mv | AT lanzaraa atransitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT sainin atransitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT brunellim atransitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT natalif atransitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT bianconia atransitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT radaellip atransitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT cheongs atransitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT lanzaraa transitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT sainin transitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT brunellim transitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT natalif transitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT bianconia transitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT radaellip transitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem AT cheongs transitionfromlargetosmallpolaronsinthela075ca025mno3perovskitesystem |