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Article overview
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Artificial helical nanomagnets | A.A.Fraerman
; B.A.Gribkov
; S.A.Gusev
; B. Hjorvarsson
; A.Yu.Klimov
; V.L.Mironov
; D.S.Nikitushkin
; V.V.Rogov
; S.N.Vdovichev
; H.Zabel
; | Date: |
17 May 2007 | Subject: | Strongly Correlated Electrons (cond-mat.str-el) | Abstract: | We demonstrate the existence of a helical state in patterned multilayer
nanomagnets. The artificial helimagnets consist of a stack of single domain
ferromagnetic disks separated by insulating nonmagnetic spacers. The spiral
state is shown to originate from the magnetostatic interaction between nearest
and next nearest neighbouring single-domain disks in the stack. Since the
magnetostatic interaction for such disks is rather strong, the helical state
should be stable at room temperature. The helimagnets were fabricated from a
[Co/Si]*3 multilayer using electron beam lithography. The helical state was
confirmed by a magnetic stray field analysis using magnetic force microscopy. | Source: | arXiv, arxiv.0705.2445 | Services: | Forum | Review | PDF | Favorites |
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