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On the realization of artificial XY spin chains
Uppsala Universitet. (Materialfysik)
Uppsala Universitet. (Materialfysik)
Uppsala University. (Materialfysik)
Uppsala Universitet. (Fysik och Astronomi)
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2005 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 17, no 2, L27-L33 p.Article in journal (Refereed) Published
Abstract [en]

Spin chains are the most elementary entities in the study of magnetic ordering behavior. The authors describe a route toward the realization of artificial XY spin chains. Using thin-film deposition and e-beam lithog., 300 and 550 nm diam. pillars consisting of alternating disks of permalloy and Al2O3 were made. Shape anisotropy forces the magnetization in plane, creating a chain of two-dimensional magnetic moments →i. The disks couple to each other by their dipolar stray fields, resulting in an interaction Jij→i·→j, with Jij the coupling between disks i and j. This form closely resembles a chain of xy spins, coupled by effective interactions Jij. The authors present a magnetic characterization of the pillars, and compare the results with model calcns. Also, spin dynamics and ordering phenomena are addressed.

Place, publisher, year, edition, pages
2005. Vol. 17, no 2, L27-L33 p.
Keyword [en]
XY spin chain magnetization magnetic ordering anisotropy
National Category
Natural Sciences
URN: urn:nbn:se:kth:diva-78470DOI: 10.1088/0953-8984/17/2/L04ISI: 000226968700004OAI: diva2:492619
CAPLUS AN 2005:144918(Journal). QC 20120301Available from: 2012-02-08 Created: 2012-02-08 Last updated: 2012-03-01Bibliographically approved

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Soroka, Inna L.
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