Search: onr:"swepub:oai:lup.lub.lu.se:03c63602-20aa-4641-833d-75d5b210e0f2" >
Structure and magne...
Structure and magnetism of ultrathin epitaxial Fe on Ag(100)
-
- Hahlin, A (author)
- Uppsala universitet,Fysiska institutionen
-
- Andersson, C (author)
- Uppsala universitet,Fysiska institutionen
-
Dunn, JH (author)
-
show more...
-
- Sanyal, Biplab (author)
- Uppsala universitet,Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Teoretisk magnetism
-
- Karis, Olof (author)
- Uppsala universitet,Fysiska institutionen
-
- Arvanitis, Dimitri (author)
- Uppsala universitet,Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Fysiska institutionen
-
show less...
-
(creator_code:org_t)
- 2006
- 2006
- English.
-
In: Physical Review B (Condensed Matter and Materials Physics). - 1098-0121 .- 1550-235X. ; 73:13
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- We have made in-situ investigations of ultrathin films of Fe grown on a Ag(100) single crystal. This system is known to exhibit a reorientation of the magnetization, dependent on both Fe thickness and temperature. X-ray absorption fine structure has been recorded for samples prepared in-situ, both in the near edge and in the extended x-ray absorption fine structure (EXAFS) region. Using x-ray magnetic circular dichroism we found that Fe films between 2-5 monolayers show an out-of-plane remanent magnetization. For thicker films the magnetization lies in-plane. By applying the magneto-optical sum rules we found an enhancement of the orbital moment (m(l)) for the out-of-plane phase, whereas the spin moment (m(s)) is unchanged. From the Fe L-edge EXAFS, we obtain information on the local crystallographic structure. A strong correlation between the local crystallographic structure and the magnetic properties is found for the Fe/Ag(100) system. Variations in the nearest neighbor distance of similar to 0.15 angstrom are observed when comparing 3 ML and 25 ML films. By comparison to simulations performed with the FEFF 8.10 code, we can identify a bcc structure for 6-25 ML Fe on Ag(100). For the 3 ML Fe film our simulations indicate strong deviations from any structure derived along the Bain path. We conclude that intermixing and distortion are important to describe the structure in this thickness range.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database