Composition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8
Polycrystalline samples of bilayered brownmillerite-like Ca 2.5Sr0.5GaCo0.15Mn1.85O8 and Ca2.5Sr0.5Ga1.2Mn1.8O 8 have been prepared and characterised by magnetometry and neutron diffraction over a wide temperature range. The structural chemistry and magnetic properties are compared to those of Ca2.5...
| Váldodahkkit: | , , , , |
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| Materiálatiipa: | Journal article |
| Giella: | English |
| Almmustuhtton: |
2006
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| _version_ | 1826278909932470272 |
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| author | Allix, M Battle, P Frampton, P Rosseinsky, M Ruiz-Bustos, R |
| author_facet | Allix, M Battle, P Frampton, P Rosseinsky, M Ruiz-Bustos, R |
| author_sort | Allix, M |
| collection | OXFORD |
| description | Polycrystalline samples of bilayered brownmillerite-like Ca 2.5Sr0.5GaCo0.15Mn1.85O8 and Ca2.5Sr0.5Ga1.2Mn1.8O 8 have been prepared and characterised by magnetometry and neutron diffraction over a wide temperature range. The structural chemistry and magnetic properties are compared to those of Ca2.5Sr0.5GaMn 2O8. Ga enrichment has a significant effect on the former but not on the latter, whereas changes in both occur when paramagnetic Co 3+ cations enter the parent phase on the 4-coordinate sites. The coupling between the environment around the 4-coordinate cations and the transition to an antiferromagnetic ordered state that was observed in Ca 2.5Sr0.5GaMn2O8 is not apparent in the cation-substituted compositions, although both show long-range antiferromagnetic order at low temperatures. © 2005 Elsevier Inc. All rights reserved. |
| first_indexed | 2024-03-06T23:50:59Z |
| format | Journal article |
| id | oxford-uuid:7296ad8b-64a7-4f16-a37c-b2df013f0214 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:50:59Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:7296ad8b-64a7-4f16-a37c-b2df013f02142022-03-26T19:51:04ZComposition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7296ad8b-64a7-4f16-a37c-b2df013f0214EnglishSymplectic Elements at Oxford2006Allix, MBattle, PFrampton, PRosseinsky, MRuiz-Bustos, RPolycrystalline samples of bilayered brownmillerite-like Ca 2.5Sr0.5GaCo0.15Mn1.85O8 and Ca2.5Sr0.5Ga1.2Mn1.8O 8 have been prepared and characterised by magnetometry and neutron diffraction over a wide temperature range. The structural chemistry and magnetic properties are compared to those of Ca2.5Sr0.5GaMn 2O8. Ga enrichment has a significant effect on the former but not on the latter, whereas changes in both occur when paramagnetic Co 3+ cations enter the parent phase on the 4-coordinate sites. The coupling between the environment around the 4-coordinate cations and the transition to an antiferromagnetic ordered state that was observed in Ca 2.5Sr0.5GaMn2O8 is not apparent in the cation-substituted compositions, although both show long-range antiferromagnetic order at low temperatures. © 2005 Elsevier Inc. All rights reserved. |
| spellingShingle | Allix, M Battle, P Frampton, P Rosseinsky, M Ruiz-Bustos, R Composition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8 |
| title | Composition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8 |
| title_full | Composition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8 |
| title_fullStr | Composition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8 |
| title_full_unstemmed | Composition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8 |
| title_short | Composition dependence of the structural chemistry and magnetism of Ca2.5Sr0.5(Ga,Co)(1+x)Mn2-xO8 |
| title_sort | composition dependence of the structural chemistry and magnetism of ca2 5sr0 5 ga co 1 x mn2 xo8 |
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