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Magnetism of FePt surface alloys
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Honolka, J., Lee, T. Y., Kuhnke, K., Enders, A., Skomski, R., Bornemann, S., Mankovsky, S., Minar, J., Staunton, J. B., Ebert, H., Hessler, M., Fauth, K., Schuetz, G., Buchsbaum, A., Schmid, M., Varga, P. and Kern, K. (2009) Magnetism of FePt surface alloys. Physical Review Letters, Vol.102 (No.6). Article no. 06720. doi:10.1103/PhysRevLett.102.067207
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.102.067207
Abstract
The complex correlation of structure and magnetism in highly coercive monoatomic FePt surface alloys is studied using scanning tunneling microscopy, x-ray magnetic circular dichroism, and ab initio theory. Depending on the specific lateral atomic coordination of Fe either hard magnetic properties comparable to that of bulk FePt or complex noncollinear magnetism due to Dzyaloshinski-Moriya interactions are observed. Our calculations confirm the subtle dependence of the magnetic anisotropy and spin alignment on the local coordination and suggest that 3D stacking of Fe and Pt layers in bulk L1(0) magnets is not essential to achieve high-anisotropy values.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science > Physics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 13 February 2009 | ||||
Dates: |
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Volume: | Vol.102 | ||||
Number: | No.6 | ||||
Number of Pages: | 4 | ||||
Page Range: | Article no. 06720 | ||||
DOI: | 10.1103/PhysRevLett.102.067207 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | DFG, NSF | ||||
Grant number: | SPP 1153, DMR-0747704, DMR-0213808 |
Data sourced from Thomson Reuters' Web of Knowledge
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