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Enhanced spin-orbit...
Enhanced spin-orbit coupling in tetragonally strained Fe-Co-B films
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- Salikhov, R. (författare)
- Faculty of Physics, Center for Nanointegration (CENIDE), University of Duisburg-Essen, Duisburg, Germany
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- Reichel, L. (författare)
- IFW Dresden, Dresden, Germany; TU Dresden, Faculty of Mechanical Engineering, Institute of Materials Science, Dresden, Germany
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- Zingsem, B. (författare)
- Faculty of Physics, Center for Nanointegration (CENIDE), University of Duisburg-Essen, Duisburg, Germany
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- Abrudan, R. (författare)
- Institut für Experimentalphysik/Festkörperphysik, Ruhr-Universität Bochum, Bochum, Germany; Helmholtz-Zentrum-Berlin for Materials and Energy, Berlin, Germany,Ruhr-Universität Bochum, Germany
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- Edström, Alexander, 1988- (författare)
- Uppsala universitet,Materialteori,Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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- Thonig, Danny, 1986- (författare)
- Uppsala universitet,Materialteori,Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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- Rusz, Jan, 1979- (författare)
- Uppsala universitet,Materialteori,Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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- Eriksson, Olle, 1960- (författare)
- Uppsala universitet,Materialteori,Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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- Schultz, L. (författare)
- IFW Dresden, Dresden, Germany; TU Dresden, Faculty of Mechanical Engineering, Institute of Materials Science, Dresden, Germany
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- Fähler, S. (författare)
- IFW Dresden, Dresden, Germany
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- Farle, M. (författare)
- Faculty of Physics, Center for Nanointegration (CENIDE), University of Duisburg-Essen, Duisburg, Germany
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- Wiedwald, U. (författare)
- Faculty of Physics, Center for Nanointegration (CENIDE), University of Duisburg-Essen, Duisburg, Germany
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(creator_code:org_t)
- Institute of Physics Publishing (IOPP), 2017
- 2017
- Engelska.
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Ingår i: Journal of Physics. - : Institute of Physics Publishing (IOPP). - 0953-8984 .- 1361-648X. ; 29:27
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Tetragonally strained interstitial Fe-Co-B alloys were synthesized as epitaxial films grown on a 20 nm thick Au0.55Cu0.45 buffer layer. Different ratios of the perpendicular to in-plane lattice constant c/a = 1.013, 1.034 and 1.02 were stabilized by adding interstitial boron with different concentrations 0, 4, and 10 at.%, respectively. Using ferromagnetic resonance (FMR) and x-ray magnetic circular dichroism (XMCD) we found that the total orbital magnetic moment significantly increases with increasing c/a ratio, indicating that reduced crystal symmetry and interstitial B leads to a noticeable enhancement of the effect of spin-orbit coupling (SOC) in the Fe-Co-B alloys. First-principles calculations reveal that the increase in orbital magnetic moment mainly originates from B impurities in octahedral position and the reduced symmetry around B atoms. These findings offer the possibility to enhance SOC phenomena - namely the magnetocrystalline anisotropy and the orbital moment - by stabilizing anisotropic strain by doping 4 at.% B. Results on the influence of B doping on the Fe-Co film microstructure, their coercive field and magnetic relaxation are also presented.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Fe-Co-B
- ferromagnetic resonance
- g-factor
- magnetic anisotropy
- orbit coupling
- spin
- tetragonal strain
- x-ray magnetic circular dichroism
- Binary alloys
- Calculations
- Copper alloys
- Crystal impurities
- Crystal symmetry
- Dichroism
- Epitaxial growth
- Ferromagnetic materials
- Ferromagnetism
- Gold alloys
- Iron alloys
- Magnetic moments
- Magnetic storage
- Magnetocrystalline anisotropy
- Semiconductor doping
- Spectroscopy
- X rays
- G factors
- Cobalt alloys
- Physics with spec. in Atomic, Molecular and Condensed Matter Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Salikhov, R.
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Reichel, L.
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Zingsem, B.
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Abrudan, R.
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Edström, Alexand ...
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Thonig, Danny, 1 ...
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visa fler...
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Rusz, Jan, 1979-
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Eriksson, Olle, ...
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Schultz, L.
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Fähler, S.
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Farle, M.
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Wiedwald, U.
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