Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation of novel memory effects
We have studied the magnetization of a series of spin-charge ordered La(2-x)Sr(x)NiO(4+delta) single crystals with 0 < x < 0.5. For fields applied parallel to the ab plane there is a large irreversibility below a temperature T(F1) ~ 50 K and a smaller irreversibility that persists up t...
| Autori principali: | , , , |
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| Natura: | Journal article |
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2005
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| _version_ | 1826269076152909824 |
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| author | Freeman, P Boothroyd, A Prabhakaran, D Lorenzana, J |
| author_facet | Freeman, P Boothroyd, A Prabhakaran, D Lorenzana, J |
| author_sort | Freeman, P |
| collection | OXFORD |
| description | We have studied the magnetization of a series of spin-charge ordered La(2-x)Sr(x)NiO(4+delta) single crystals with 0 < x < 0.5. For fields applied parallel to the ab plane there is a large irreversibility below a temperature T(F1) ~ 50 K and a smaller irreversibility that persists up to near the charge ordering temperature. We observed a novel memory effect in the thermo-remnant magnetization across the entire doping range. We found that these materials retain a memory of the temperature at which an external field was removed, and that there is a pronounced increase in the thermo-remnant magnetization when the system is warmed through a spin reorientation transition. |
| first_indexed | 2024-03-06T21:19:23Z |
| format | Journal article |
| id | oxford-uuid:40eb375b-533c-49e5-b921-c82dc5db8cb6 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T21:19:23Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:40eb375b-533c-49e5-b921-c82dc5db8cb62022-03-26T14:40:36ZMagnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation of novel memory effectsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:40eb375b-533c-49e5-b921-c82dc5db8cb6Symplectic Elements at Oxford2005Freeman, PBoothroyd, APrabhakaran, DLorenzana, JWe have studied the magnetization of a series of spin-charge ordered La(2-x)Sr(x)NiO(4+delta) single crystals with 0 < x < 0.5. For fields applied parallel to the ab plane there is a large irreversibility below a temperature T(F1) ~ 50 K and a smaller irreversibility that persists up to near the charge ordering temperature. We observed a novel memory effect in the thermo-remnant magnetization across the entire doping range. We found that these materials retain a memory of the temperature at which an external field was removed, and that there is a pronounced increase in the thermo-remnant magnetization when the system is warmed through a spin reorientation transition. |
| spellingShingle | Freeman, P Boothroyd, A Prabhakaran, D Lorenzana, J Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation of novel memory effects |
| title | Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation
of novel memory effects |
| title_full | Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation
of novel memory effects |
| title_fullStr | Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation
of novel memory effects |
| title_full_unstemmed | Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation
of novel memory effects |
| title_short | Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation
of novel memory effects |
| title_sort | magnetization of la 2 x sr x nio 4 delta 0 lt x lt 0 5 and observation of novel memory effects |
| work_keys_str_mv | AT freemanp magnetizationofla2xsrxnio4delta0ltxlt05andobservationofnovelmemoryeffects AT boothroyda magnetizationofla2xsrxnio4delta0ltxlt05andobservationofnovelmemoryeffects AT prabhakarand magnetizationofla2xsrxnio4delta0ltxlt05andobservationofnovelmemoryeffects AT lorenzanaj magnetizationofla2xsrxnio4delta0ltxlt05andobservationofnovelmemoryeffects |