Growth and magnetic domain structure of ultrathin Fe films on Rh(001)

The growth and magnetic domain structure of ultrathin Fe films epitaxially grown on face-centered cubic (fcc) Rh(001) is investigated by spin-polarized scanning tunneling microscopy (SP-STM) at low temperatures (T = 5.5k). Our results indicate that the cleaning procedure applied to the Rh(001) subst...

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Veröffentlicht in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2015-05, Vol.91 (18), Article 184412
Hauptverfasser: Kemmer, Jeannette, Wilfert, Stefan, Kügel, Jens, Mauerer, Tobias, Hsu, Pin-Jui, Bode, Matthias
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container_issue 18
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container_title Physical review. B, Condensed matter and materials physics
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creator Kemmer, Jeannette
Wilfert, Stefan
Kügel, Jens
Mauerer, Tobias
Hsu, Pin-Jui
Bode, Matthias
description The growth and magnetic domain structure of ultrathin Fe films epitaxially grown on face-centered cubic (fcc) Rh(001) is investigated by spin-polarized scanning tunneling microscopy (SP-STM) at low temperatures (T = 5.5k). Our results indicate that the cleaning procedure applied to the Rh(001) substrate plays an important role for the formation of a clean and well-ordered Fe film. The Fe monolayer exhibits an out-of-plane antiferromagnetic c(2 x 2) spin structure. Islands of the second Fe layer are found to be out-of-plane ferromagnetic. Coalescence of the double-layer islands results in the formation of larger domains, which extend over several hundred nanometers for a closed two layer film. Further increasing the Fe coverage leads to a reduction of the domain size and the formation of patterns that are reminiscent of stripe domains driven by the competition of surface/interface and shape anisotropy.
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subjects Cleaning
Condensed matter
Ferromagnetism
Formations
Iron
Islands
Magnetic domains
Nanostructure
title Growth and magnetic domain structure of ultrathin Fe films on Rh(001)
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