Localized 4f states and dynamic Jahn-Teller effect in PrO2.
Neutron spectroscopic measurements of the magnetic excitations in PrO2 reveal (1) sharp peaks characteristic of transitions between levels of the 4f(1) configuration of Pr4+ split by the cubic crystal field, and (2) broad bands of scattering centered near 30 and 160 meV. We present a simple model ba...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Inst of Physics
2001
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| _version_ | 1797050819741220864 |
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| author | Boothroyd, A Gardiner, C Lister, S Santini, P Rainford, B Noailles, L Currie, D Eccleston, R Bewley, R |
| author_facet | Boothroyd, A Gardiner, C Lister, S Santini, P Rainford, B Noailles, L Currie, D Eccleston, R Bewley, R |
| author_sort | Boothroyd, A |
| collection | OXFORD |
| description | Neutron spectroscopic measurements of the magnetic excitations in PrO2 reveal (1) sharp peaks characteristic of transitions between levels of the 4f(1) configuration of Pr4+ split by the cubic crystal field, and (2) broad bands of scattering centered near 30 and 160 meV. We present a simple model based on a vibronic Hamiltonian that accounts for these contrasting features of the data. The analysis shows that 90%+/-10% of the Pr ions have a localized 4f(1) configuration and provides strong evidence for a dynamic Jahn-Teller effect in the gamma(8) electronic ground state. |
| first_indexed | 2024-03-06T18:10:51Z |
| format | Journal article |
| id | oxford-uuid:02f6c116-e5cb-484f-b388-684c6679edfd |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:10:51Z |
| publishDate | 2001 |
| publisher | American Inst of Physics |
| record_format | dspace |
| spelling | oxford-uuid:02f6c116-e5cb-484f-b388-684c6679edfd2022-03-26T08:43:38ZLocalized 4f states and dynamic Jahn-Teller effect in PrO2.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:02f6c116-e5cb-484f-b388-684c6679edfdEnglishSymplectic Elements at OxfordAmerican Inst of Physics2001Boothroyd, AGardiner, CLister, SSantini, PRainford, BNoailles, LCurrie, DEccleston, RBewley, RNeutron spectroscopic measurements of the magnetic excitations in PrO2 reveal (1) sharp peaks characteristic of transitions between levels of the 4f(1) configuration of Pr4+ split by the cubic crystal field, and (2) broad bands of scattering centered near 30 and 160 meV. We present a simple model based on a vibronic Hamiltonian that accounts for these contrasting features of the data. The analysis shows that 90%+/-10% of the Pr ions have a localized 4f(1) configuration and provides strong evidence for a dynamic Jahn-Teller effect in the gamma(8) electronic ground state. |
| spellingShingle | Boothroyd, A Gardiner, C Lister, S Santini, P Rainford, B Noailles, L Currie, D Eccleston, R Bewley, R Localized 4f states and dynamic Jahn-Teller effect in PrO2. |
| title | Localized 4f states and dynamic Jahn-Teller effect in PrO2. |
| title_full | Localized 4f states and dynamic Jahn-Teller effect in PrO2. |
| title_fullStr | Localized 4f states and dynamic Jahn-Teller effect in PrO2. |
| title_full_unstemmed | Localized 4f states and dynamic Jahn-Teller effect in PrO2. |
| title_short | Localized 4f states and dynamic Jahn-Teller effect in PrO2. |
| title_sort | localized 4f states and dynamic jahn teller effect in pro2 |
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