Spin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4)
The magnetism of charge-stripe-ordered La1.55Sr 0.45NiO4 was studied by a combination of neutron diffraction, muon-spin relaxation (μSR), and bulk susceptibility. Long-range magnetic ordering was observed at a lower temperature by μSR than by neutron diffraction, consistent with a glassy transition...
| Egile Nagusiak: | , , , , |
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| Formatua: | Journal article |
| Hizkuntza: | English |
| Argitaratua: |
2008
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| _version_ | 1826280103684866048 |
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| author | Giblin, SR Freeman, P Hradil, K Prabhakaran, D Boothroyd, A |
| author_facet | Giblin, SR Freeman, P Hradil, K Prabhakaran, D Boothroyd, A |
| author_sort | Giblin, SR |
| collection | OXFORD |
| description | The magnetism of charge-stripe-ordered La1.55Sr 0.45NiO4 was studied by a combination of neutron diffraction, muon-spin relaxation (μSR), and bulk susceptibility. Long-range magnetic ordering was observed at a lower temperature by μSR than by neutron diffraction, consistent with a glassy transition to the ordered phase. A second magnetic transition is detected by all techniques and is consistent with a spin reorientation. On cooling below TSR=42 K the spins reorientate from lying 32.9±0.6° away from the stripe direction at 70 K to 56.8±0.4° at 10 K. The magnetic order was observed by neutron diffraction to have both three-dimensional and two-dimensional (without any correlation along the c axis) characters. μSR measurements confirmed this and are consistent with a single magnetically ordered spin-stripe phase. The effects of checkerboard charge order on the ordered phase and the characteristics of the phase diagram of the spin reorientation in charge-ordered La2-xSrxNiO4 are commented on. © 2008 The American Physical Society. |
| first_indexed | 2024-03-07T00:08:42Z |
| format | Journal article |
| id | oxford-uuid:7874c94d-3ffc-4cac-b6e9-762ca1696af0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:08:42Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:7874c94d-3ffc-4cac-b6e9-762ca1696af02022-03-26T20:30:50ZSpin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4)Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7874c94d-3ffc-4cac-b6e9-762ca1696af0EnglishSymplectic Elements at Oxford2008Giblin, SRFreeman, PHradil, KPrabhakaran, DBoothroyd, AThe magnetism of charge-stripe-ordered La1.55Sr 0.45NiO4 was studied by a combination of neutron diffraction, muon-spin relaxation (μSR), and bulk susceptibility. Long-range magnetic ordering was observed at a lower temperature by μSR than by neutron diffraction, consistent with a glassy transition to the ordered phase. A second magnetic transition is detected by all techniques and is consistent with a spin reorientation. On cooling below TSR=42 K the spins reorientate from lying 32.9±0.6° away from the stripe direction at 70 K to 56.8±0.4° at 10 K. The magnetic order was observed by neutron diffraction to have both three-dimensional and two-dimensional (without any correlation along the c axis) characters. μSR measurements confirmed this and are consistent with a single magnetically ordered spin-stripe phase. The effects of checkerboard charge order on the ordered phase and the characteristics of the phase diagram of the spin reorientation in charge-ordered La2-xSrxNiO4 are commented on. © 2008 The American Physical Society. |
| spellingShingle | Giblin, SR Freeman, P Hradil, K Prabhakaran, D Boothroyd, A Spin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4) |
| title | Spin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4) |
| title_full | Spin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4) |
| title_fullStr | Spin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4) |
| title_full_unstemmed | Spin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4) |
| title_short | Spin reorientation and glassy dynamics in La(1.55)Sr(0.45)NiO(4) |
| title_sort | spin reorientation and glassy dynamics in la 1 55 sr 0 45 nio 4 |
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