Phase separation during the topotactic reduction of the pyrochlore Y2Ti2O7
The topotactic reduction of the pyrochlore Y2Ti 2O7 with CaH2 is described. Neutron and X-ray powder diffraction data reveal the reduction yields mixtures of two reduced phases: Y2Ti2O6.48(2), a material from which oxide ions have been removed from the 48f anion site, and Y2Ti 2O5.90(6), which exhib...
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| Format: | Journal article |
| Language: | English |
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2005
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| _version_ | 1797088144044064768 |
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| author | Hayward, M |
| author_facet | Hayward, M |
| author_sort | Hayward, M |
| collection | OXFORD |
| description | The topotactic reduction of the pyrochlore Y2Ti 2O7 with CaH2 is described. Neutron and X-ray powder diffraction data reveal the reduction yields mixtures of two reduced phases: Y2Ti2O6.48(2), a material from which oxide ions have been removed from the 48f anion site, and Y2Ti 2O5.90(6), which exhibits a small amount of cation antisite disorder and a complicated defect anion structure. An electronic origin for the observed phase separation is explored. Magnetic data collected from reduced samples are consistent with delocalized metallic behavior. |
| first_indexed | 2024-03-07T02:45:44Z |
| format | Journal article |
| id | oxford-uuid:ac00df60-978f-4a4d-ac9a-494f4b9f0783 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:45:44Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:ac00df60-978f-4a4d-ac9a-494f4b9f07832022-03-27T03:25:44ZPhase separation during the topotactic reduction of the pyrochlore Y2Ti2O7Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ac00df60-978f-4a4d-ac9a-494f4b9f0783EnglishSymplectic Elements at Oxford2005Hayward, MThe topotactic reduction of the pyrochlore Y2Ti 2O7 with CaH2 is described. Neutron and X-ray powder diffraction data reveal the reduction yields mixtures of two reduced phases: Y2Ti2O6.48(2), a material from which oxide ions have been removed from the 48f anion site, and Y2Ti 2O5.90(6), which exhibits a small amount of cation antisite disorder and a complicated defect anion structure. An electronic origin for the observed phase separation is explored. Magnetic data collected from reduced samples are consistent with delocalized metallic behavior. |
| spellingShingle | Hayward, M Phase separation during the topotactic reduction of the pyrochlore Y2Ti2O7 |
| title | Phase separation during the topotactic reduction of the pyrochlore Y2Ti2O7 |
| title_full | Phase separation during the topotactic reduction of the pyrochlore Y2Ti2O7 |
| title_fullStr | Phase separation during the topotactic reduction of the pyrochlore Y2Ti2O7 |
| title_full_unstemmed | Phase separation during the topotactic reduction of the pyrochlore Y2Ti2O7 |
| title_short | Phase separation during the topotactic reduction of the pyrochlore Y2Ti2O7 |
| title_sort | phase separation during the topotactic reduction of the pyrochlore y2ti2o7 |
| work_keys_str_mv | AT haywardm phaseseparationduringthetopotacticreductionofthepyrochlorey2ti2o7 |