Charge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites.
We present transport and neutron-diffraction data establishing a clear link between static and dynamic distortions of the MnO6 octahedra and charge mobility in Al-xA′x MnO3 (A= La or Pr; A′ = Ca or Sr). Systematic analysis of the Mn-O bond lengths versus average A -site ionic radius indicates that i...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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1996
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| _version_ | 1797105890399092736 |
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| author | Radaelli, P Marezio, M Hwang, H Cheong, S Batlogg, B |
| author_facet | Radaelli, P Marezio, M Hwang, H Cheong, S Batlogg, B |
| author_sort | Radaelli, P |
| collection | OXFORD |
| description | We present transport and neutron-diffraction data establishing a clear link between static and dynamic distortions of the MnO6 octahedra and charge mobility in Al-xA′x MnO3 (A= La or Pr; A′ = Ca or Sr). Systematic analysis of the Mn-O bond lengths versus average A -site ionic radius indicates that increasing static coherent MnO6 distortion is associated with increasing insulating behavior and decreasing TC. Furthermore, we observed a sudden drop of the oxygen thermal parameters at TC, indicating that static incoherent and dynamic effects are also important. |
| first_indexed | 2024-03-07T06:53:49Z |
| format | Journal article |
| id | oxford-uuid:fd719155-8add-459e-88a5-ae61a58d82e0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:53:49Z |
| publishDate | 1996 |
| record_format | dspace |
| spelling | oxford-uuid:fd719155-8add-459e-88a5-ae61a58d82e02022-03-27T13:28:51ZCharge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fd719155-8add-459e-88a5-ae61a58d82e0EnglishSymplectic Elements at Oxford1996Radaelli, PMarezio, MHwang, HCheong, SBatlogg, BWe present transport and neutron-diffraction data establishing a clear link between static and dynamic distortions of the MnO6 octahedra and charge mobility in Al-xA′x MnO3 (A= La or Pr; A′ = Ca or Sr). Systematic analysis of the Mn-O bond lengths versus average A -site ionic radius indicates that increasing static coherent MnO6 distortion is associated with increasing insulating behavior and decreasing TC. Furthermore, we observed a sudden drop of the oxygen thermal parameters at TC, indicating that static incoherent and dynamic effects are also important. |
| spellingShingle | Radaelli, P Marezio, M Hwang, H Cheong, S Batlogg, B Charge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites. |
| title | Charge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites. |
| title_full | Charge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites. |
| title_fullStr | Charge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites. |
| title_full_unstemmed | Charge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites. |
| title_short | Charge localization by static and dynamic distortions of the MnO6 octahedra in perovskite manganites. |
| title_sort | charge localization by static and dynamic distortions of the mno6 octahedra in perovskite manganites |
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