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Crystal perfection by strain engineering: The case of Fe/V (001)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. (ELMiN)ORCID iD: 0000-0002-8262-5893
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2017 (English)In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 636, 608-614 p.Article in journal (Refereed) Published
Abstract [en]

We study the effect of bilayer thickness at fixed volume fraction on the structural quality of Fe/V (001)superlattices. We find that such artificial metallic superlattices can be manufactured with excellent crystalquality and layering up to at least 50 Å in repeat distance (K = LFe +LV). For an intended fixed ratio of theconstituents: LFe/LV= 1/7, out-of-plane coherence lengths comparable to the thicknesses of the sampleswere obtained. We evaluate the strain in- and out-of-plane of both layers as a function of the bilayer thicknessand comment on the growth using the framework of linear elasticity theory. We interpret the stabilityof the superlattice against crystal degradation due to the alternating compressive and tensile strain, yieldingclose to ideal lattice matching to the substrate.

Place, publisher, year, edition, pages
2017. Vol. 636, 608-614 p.
Keyword [en]
Superlattice; Iron/Vanadium; Sputtering; Epitaxy; Reciprocal space mapping; X-ray diffraction; X-ray reflectivity; Linear elasticity
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Other Materials Engineering
Identifiers
URN: urn:nbn:se:uu:diva-332050DOI: 10.1016/j.tsf.2017.07.005ISI: 000408037800086OAI: oai:DiVA.org:uu-332050DiVA: diva2:1151375
Available from: 2017-10-23 Created: 2017-10-23 Last updated: 2017-11-20Bibliographically approved

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Droulias, Sotirios A.Pálsson, Gunnar K.Palonen, HeikkiAli, HasanLeifer, KlausKapaklis, VassiliosHjörvarsson, BjörgvinWolff, Max

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