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Disorder-induced microscopic magnetic memory

Pierce, MS ; Buechler, CR ; Sorensen, LB ; Turner, JJ ; Kevan, SD ; Jagla, EA ; Deutsch, JM ; Mai, T ; Narayan, O and Davies, JE , et al. (2005) In Physical Review Letters 94(1).
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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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
94
issue
1
publisher
American Physical Society
external identifiers
  • wos:000226308000076
  • scopus:18144405398
ISSN
1079-7114
DOI
10.1103/PhysRevLett.94.017202
language
English
LU publication?
yes
id
573fbf11-3d1f-4197-a092-9e269c0c7b20 (old id 255093)
date added to LUP
2016-04-01 12:19:00
date last changed
2022-03-13 08:17:46
@article{573fbf11-3d1f-4197-a092-9e269c0c7b20,
  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.}},
  author       = {{Pierce, MS and Buechler, CR and Sorensen, LB and Turner, JJ and Kevan, SD and Jagla, EA and Deutsch, JM and Mai, T and Narayan, O and Davies, JE and Liu, K and Hunter Dunn, Jonathan and Chesnel, KM and Kortright, JB and Hellwig, O and Fullerton, EE}},
  issn         = {{1079-7114}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Disorder-induced microscopic magnetic memory}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.94.017202}},
  doi          = {{10.1103/PhysRevLett.94.017202}},
  volume       = {{94}},
  year         = {{2005}},
}