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- Pierce, MS, et al.
(författare)
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Disorder-induced microscopic magnetic memory
- 2005
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Ingår i: Physical Review Letters. - 1079-7114. ; 94:1
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Tidskriftsartikel (refereegranskat)abstract
- Using coherent x-ray speckle metrology, we have measured the influence of disorder on major loop return point memory (RPM) and complementary point memory (CPM) for a series of perpendicular anisotropy Co/Pt multilayer films. In the low disorder limit, the domain structures show no memory with field cycling-no RPM and no CPM. With increasing disorder, we observe the onset and the saturation of both the RPM and the CPM. These results provide the first direct ensemble-sensitive experimental study of the effects of varying disorder on microscopic magnetic memory and are compared against the predictions of existing theories.
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