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...

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主要な著者: Freeman, P, Boothroyd, A, Prabhakaran, D, Lorenzana, J
フォーマット: Journal article
出版事項: 2005
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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.
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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